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.
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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 students currently attend the Mfantsipim School? Passage 1:William Nelson was the third and youngest son of Dr. Thomas W. Nelson (1796–1849) and Frances Doniphan (1795–1845) of Maysville, Kentucky. He attended Maysville Academy (Seminary) and was enrolled in Norwich University at age thirteen. Two years later, Nelson's preparatory training at the Vermont military school concluded when Congressman Garrett Davis secured an appointment for him to become a midshipman in the United States Navy. In the spring of 1840, Nelson reported for training aboard the . For the next five years he sailed the South Pacific under the leadership of harsh, overbearing, and insensitive brutes. Nelson then joined the first class to attend the newly established Naval Academy at Annapolis, Maryland. On July 11, 1846 Nelson became a passed midshipman and the following October, he reported for duty aboard the , the flagship for the Home Squadron in the Gulf of Mexico. At the Siege of Veracruz, he served with Naval Battery No. 5, and on the second Tabasco Expedition, Nelson was a member of the Second Artillery Division. In February 1848, he became acting master of the . At the conclusion of his service, Nelson received a sword for heroism and proficiency as an artillerist. In the summer of 1849, he joined the Mediterranean Squadron, and on September 1, 1851, he was acting lieutenant of the when exiled Hungarian revolutionary Louis Kossuth boarded the vessel to come to the United States. In December, Nelson became an escort for the Magyar's famous tour of the United States. On September 19, 1854 he was promoted to sailing master and the following April 18, 1855 achieved the rank of lieutenant. In September 1858, Nelson joined the for the mission of returning captured slaves to Monrovia, Liberia. Two years later, he was at the Washington Navy Yard as an ordnance officer.
 Passage 2:Marques del Duero was the oldest member of Rear Admiral Patricio Montojo de Pasaron's Pacific Squadron at Manila in the Philippine Islands when the Spanish–American War broke out in April 1898. She was anchored with the squadron in Cañacao Bay under the lee of the Cavite Peninsula east of Sangley Point, Luzon, eight miles southwest of Manila, when, early on the morning of 1 May 1898, the United States Navy's Asiatic Squadron under Commodore George Dewey, found Montojo's anchorage and attacked. In the resulting Battle of Manila Bay, the first major engagement of the Spanish–American War, Marques del Duero took one , one , and about three other shell hits, which wrecked her bow gun, a side gun, and an engine. Her crew scuttled her in shallow water; part of her upper works remained above water, and a boarding crew from the gunboat went aboard and set these on fire at the end of battle.
 Passage 3:Amissah-Arthur was born at Cape Coast on 29 April 1951, the capital of the Central Region of Ghana, at the time organized as British Gold Coast Colony. His mother, Effie Amissah-Arthur is from the Hutchful family while his father, Jabesh Richmond P. Amissah-Arthur, an educator was from the Amissah-Arthur family and served as the second and longest serving headmaster of the Oda Secondary School at Akyem-Oda in the Eastern Region from September 1961 to December, 1977. Both families originated from Cape Coast and are of Fante ethnic origin. Kwesi Amissah-Arthur had five other siblings - one brother and four sisters. He attended the Aboom Methodist 'B' Primary School in Cape Coast and passed the Common Entrance examination from the Akim Oda Methodist School in 1964. He completed his secondary education at the Mfantsipim School, where he obtained the GCE Ordinary Level in 1969 and the GCE Advanced Level in 1971. At Mfantsipim, he was a resident of Lockhart-Schweitzer House. He proceeded to the University of Ghana at Legon, where he obtained the B.Sc. in 1974 and M.Sc. in 1976, both in Economics.

Solution:
3