You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

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.
.
Solution: 1
Why? The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input: Question: How many children does the candidate from Arkansas who won the state with ease in 1992 and 1996 have? Passage 1:For the better part of a century, Missouri has been reckoned as the nation's bellwether state. Prior to 2008, since 1904, Missouri had voted for the winner in every presidential election except in 1956 when the state narrowly voted for Democrat Adlai Stevenson of neighboring Illinois over incumbent Republican President Dwight D. Eisenhower. In recent years, however, it has gradually been trending Republican. Although Bill Clinton of neighboring Arkansas won the state with ease during both of his elections in 1992 and 1996, Al Gore and John Kerry considered the Show-Me State a lost cause and did not campaign much there. Although Barack Obama is from neighboring Illinois, at first he likewise put the state as a secondary concern in relation to other swing states such as Ohio and Virginia where he thought he had more of a chance. As his lead diminished in the summer months, he and McCain moved the campaign to more Democratic-friendly states, as McCain maintained a comfortable polling lead in Missouri. Similar hypothetical general match-up polls taken between McCain and Hillary Rodham Clinton, however, showed Clinton always leading in Missouri.
 Passage 2:Blinky is a three-eyed orange fish featured primarily in "Two Cars in Every Garage and Three Eyes on Every Fish". Likely mutated by toxic waste from the Springfield Nuclear Power Plant pouring into the river, Blinky became a major news story when he was caught by Bart Simpson. Mr. Burns defends the fish, arguing that his extra eye is merely the next step in evolution. Mr. Burns goes to the Simpsons' house for a meal to boost his race for governor. Marge, a supporter of Burns' opponent Mary Bailey, deliberately serves Blinky for dinner. Mr. Burns spits the fish out and subsequently loses the election. Blinky was briefly seen again in episodes "Homer's Odyssey" and "Raging Abe Simpson and His Grumbling Grandson in 'The Curse of the Flying Hellfish'". Blinky also made a brief appearance in an underwater section of the tube-way Fry travels through in the pilot episode of the animated series Futurama, which was created by The Simpsons creator Matt Groening. Blinky also appears in an episode of Futuramas seventh season titled ""; Blinky is seen in a fish bowl on Jrrr's desk.
 Passage 3:The first production of tinplate was probably in Bohemia, from where the trade spread to Saxony, and was well-established there by the 1660s. Andrew Yarranton and Ambrose Crowley (a Stourbridge blacksmith and father of the more famous Sir Ambrose) visited Dresden in 1667 and found out how it was made. In doing so, they were sponsored by various local ironmasters and people connected with the project to make the river Stour navigable. In Saxony, the plates were forged, but when they conducted experiments on their return to England, they tried rolling the iron. This led to the ironmasters Philip Foley and Joshua Newborough (two of the sponsors) in 1670 erecting a new mill, Wolverley Lower Mill (or forge). This contained three shops, one being a slitting mill (which would serve as a rolling mill), and the others were forges. In 1678 one of these was making frying pans and the other drawing out blooms made in finery forges elsewhere. It is likely that the intention was to roll the plates and then finish them under a hammer, but the plan was frustrated by one William Chamberlaine renewing a patent granted to him and Dud Dudley in 1662.

Solution:
1