In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.
Example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage 1: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lô during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Passage 2: John Ford (1894–1973) was an American film director whose career spanned from 1913 to 1971. During this time he directed more than 140 films. Born in Maine, Ford entered the filmmaking industry shortly after graduating from high school with the help of his older brother, Francis Ford, who had established himself as a leading man and director for Universal Studios. After working as an actor, assistant director, stuntman, and prop man – often for his brother – Universal gave Ford the opportunity to direct in 1917. Initially working in short films, he quickly moved into features, largely with Harry Carey as his star. In 1920 Ford left Universal and began working for the Fox Film Corporation. During the next ten years he directed more than 30 films, including the westerns The Iron Horse (1924) and 3 Bad Men (1926), both starring George O'Brien, the war drama Four Sons and the Irish romantic drama Hangman's House (both 1928 and both starring Victor McLaglen). In the same year of these last two films, Ford directed his first all-talking film, the short Napoleon's Barber. The following year he directed his first all-talking feature, The Black Watch.
. Passage 3: Since the late 1970s, the central part of NYU is its Washington Square campus in the heart of Greenwich Village. Despite being public property, and expanding the Fifth Avenue axis into Washington Square Park, the Washington Square Arch is the unofficial symbol of NYU. Until 2008, NYU's commencement ceremony was held in Washington Square Park. However, due to space constraints, ceremonies are now held at the Yankee Stadium. Important facilities at Washington Square are the Elmer Holmes Bobst Library, designed by Philip Johnson and Richard Foster, who also designed several other structures, such as Tisch Hall, Meyer Hall, and the Hagop Kevorkian Center. When designing these buildings Johnson and Foster also set up a master plan for a complete redesign of the NYU Washington Square campus. However, it was never implemented. Other historic buildings include the Silver Center (formerly known as "Main building"); the Brown Building of Science; Judson Hall, which houses the King Juan Carlos I of Spain Center; Vanderbilt Hall, the historic townhouse row on Washington Square North; The Grey Art Gallery at 100 Washington Square East, housing the New York University art collection and featuring museum quality exhibitions; the Kaufman Management Center; and the Torch Club – the NYU dining and club facility for alumni, faculty, and administrators. Just a block south of Washington Square is NYU's Washington Square Village, housing graduate students and junior and senior faculty residences in the Silver Towers, designed by I. M. Pei, where an enlargement of Picasso's sculpture Bust of Sylvette (1934) is displayed.
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Example solution: 1
Example explanation: The question refers to the 704th unit and task about war which is decribed by Passage 1.

Problem: Question: Why was Saoirse Ronan replaced by Alicia Vikander? Passage 1:In 2009 it was announced that the feature film Testament of Youth was in development by BBC Films and Heyday Films producer David Heyman, and was to be directed by James Kent. This had the support of the Vera Brittain Estate, Brittain's daughter Shirley Williams, and Brittain's biographer Mark Bostridge who is acting as consultant. Saoirse Ronan was cast to play Brittain in 2012 but was replaced in December 2013 when it was announced that Alicia Vikander would play Vera Brittain in the film which was released in late 2014 as part of the First World War commemorations. On 4 February 2014 Kit Harington joined the cast to play the role of Brittain's fiancé Roland Leighton. On 13 February 2014, Colin Morgan, Taron Egerton, and Alexandra Roach were announced to have joined the film's cast. An ensemble cast was later confirmed as filming began, including Dominic West, Emily Watson, Joanna Scanlan, Hayley Atwell, Jonathan Bailey and Anna Chancellor. It substituted Merton College, Oxford in the scenes showing Brittain's time as a student at Somerville College, arguing that filming in Somerville itself would been too difficult in light of the new buildings constructed there since the film's time period.
 Passage 2:In 2004, Mendler got her first acting role in the animated Indian film The Legend of Buddha, in which she portrayed Lucy. When she was 13 years old, she got an acting role as a guest star on the soap opera General Hospital. She portrayed the dream child of character Lulu Spencer, in which the two have an argument on Mendler's character's birthday. The scene, lasting just under a minute, is later revealed to be a dream. That same year, Mendler was the voice of the character Thorn in the video game Bone: The Great Cow Race, which was based on the Bone comic series. In 2007, Mendler made her film debut in the film adaption of the Alice series, titled Alice Upside Down. Mendler starred alongside Disney Channel actress Alyson Stoner and Lucas Grabeel. Mendler portrayed the antagonistic role of Pamela, who is the rival of Stoner's character, Alice. For the film's soundtrack, Mendler provided backing vocals on the song "Free Spirit", performed by Stoner. Also in 2007 Mendler auditioned for Sonny with a Chance for the role of Sonny Munroe, but Demi Lovato was chosen. In 2008, it was announced that Mendler would play the role of Kristen Gregory in the film adaption of the popular teen novel series The Clique by Lisi Harrison. Mendler had the role of Kristen, a girl who attends OCD on a scholarship, and works hard to keep her good grades.
 Passage 3:He was born John Miller in County Clare, Ireland. His father was John Miller and his mother, John's wife, Anne née Browne. He was educated at Dalston School and Eton College before joining the British Army in 1760 as a cornet. He was on active service in the Battle of Emsdorf and at Belleisle, France in 1761, before retiring from the army in 1763. He was admitted to study at the Middle Temple in 1765, though does not seem to have made any progress with his legal studies. He also studied at Trinity Hall, Cambridge, though he did not graduate. In August 1765 he married Anna née Riggs (1741–1781), adding her name to his own. They had a son and a daughter. In July 1762 he inherited his family estates; they were worth little, but his wife brought substantial wealth to the marriage, enabling him to build a prestigious house at Batheaston, Somerset. The couple there held a fortnightly literary salon along with competitions and prizes. The prizes were drawn from an ornately decorated Roman vase and the affair was mocked as Lady Miller's Vase, though that did not dissuade distinguished contributions from the like of David Garrick and Christopher Anstey. In 1778 he was created a Baronet, of Ballicasey in the County of Clare. Anna died on 24 June 1781; on 9 September 1795 he married Jane née Sell, widow of Sir Thomas Davenport. He was elected Member of Parliament for Newport, Cornwall in 1784.
Solution: 1