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.

Let me give you an 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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The answer to this example can be: 1
Here is why: The question refers to the 704th unit and task about war which is decribed by Passage 1.

OK. solve this:
Question: How many soldiers did Britain send to World War I the year Roebuck arrived on the Western Front? Passage 1:Despite its initial success, Epcot constantly met the challenges of evolving with worldwide progress, an issue that caused the park to lose relevance and become outdated in the 1990s. To maintain attendance levels, Disney introduced seasonal events such as the International Flower & Garden Festival and the International Food & Wine Festival in 1994 and 1995, respectively. In the mid-1990s, Disney also began to gradually phase out the park's edutainment attractions in favor of more modern and thrilling attractions. As a result, many of the attractions within the Future World pavilions, were either rehauled or replaced entirely. Universe of Energy was reconfigured as Ellen's Energy Adventure in 1996, World of Motion was rethemed as Test Track, and Horizons was demolished in 1999 and replaced with . Walt Disney World held the Millenium Celebration with the central focus of the event at Epcot. The Living Seas was closed in 2005, and rethemed with the introduction of characters from Finding Nemo, as The Seas with Nemo and Friends. That same year, the Soarin' attraction was added to The Land. Wonders of Life closed in 2007, with the pavilon being occasionally used for the park's annual festivals.
 Passage 2:As a boy, Roebuck worked as a trammer and after being sentenced to one month's imprisonment for stealing a watch in 1904, he enlisted in the York and Lancaster Regiment. Over the next seven years, he was stationed in India and Ireland and was promoted to lance corporal, but was demoted back to private in 1910 for "misconduct". He married in 1908 and had two children. Roebuck was discharged into the reserves in 1912 and likely returned to work as a miner prior to becoming a professional footballer in 1913. After Britain's entry into the First World War in August 1914, he was called up by the York and Lancaster Regiment and arrived on the Western Front in September 1914. On 18 October 1914, Roebuck recorded as "presumed dead" after an attack near Beaucamps-Ligny during the Race to the Sea. His death was confirmed by two comrades in January 1915. Roebuck is commemorated on the Ploegsteert Memorial to the Missing.
 Passage 3:In December, Jax started a feud with Sasha Banks, whom she injured as part of the storyline. This led to two matches between the two: Jax was victorious at the Royal Rumble pre-show on January 29, 2017, but she lost on March 5 at Fastlane. On April 3 at WrestleMania 33, Jax competed in a fatal four-way elimination match against Banks, Bayley and Charlotte Flair for the Raw Women's Championship, but she was eliminated first. On the June 26 episode of Raw, Jax competed in a gauntlet match to determine a number one contender for Alexa Bliss's Raw Women's Championship, eliminating Bayley, Mickie James, Dana Brooke and Emma consecutively before being defeated by Banks. On September 24 at No Mercy, Jax took part of a fatal five-way match for the Raw Women's Championship, but she failed to win the title. On November 19 at Survivor Series, Jax once again was a part of Team Raw in a five-on-five elimination tag team match from which she was eliminated by countout.

Answer:
2