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 years did Amunugama serve as Chairman of The Associated Newspapers of Ceylong Ltd? Passage 1:He studied at the Trinity College, Kandy and graduated from the University of Ceylon. He joined the Ceylon Civil Service (CCS) in its last intake of cadets in 1962. Following the disestablishment of the CCS he was transferred to its successor the Ceylon Administrative Service which was later renamed as the Sri Lanka Administrative Service (SLAS). During his career in the SLAS he served as Government Agent of the Kandy District, Director of Information, Permanent Secretary to Ministry of Information and Broadcasting and later Chairman, The Associated Newspapers of Ceylon Ltd. Before entering active politics he worked as an International Civil Servant for UNESCO headquarters in Paris. He resides in Colombo.
 Passage 2:In 976, at the age of 11, Hisham II succeeded his father Al-Hakam II as Caliph of Cordoba. Hisham II was a minor at the time of his accession and therefore was unfit to rule. In order to benefit the Caliphate, his mother Subh was aided by first minister Jafar al-Mushafi to act as regents with al-Mansur ibn Abi Aamir (better known as "Almanzor") as her steward. In 978 Almanzor manipulated his way into the position of royal chamberlain. In an attempt to position himself as a prospective ruler of the Caliphate, Almanzor and General Ghalib al-Siklabi sabotaged the brother of Al-Hakam II who was set to succeed his brother and become the next Caliph of Cordoba. Too young to rule, Hisham II handed his political reins of power over to Almanzor in 981 who became the de facto leader of the Caliphate until his death in 1002. Al-Mansur ibn Abi Amir perpetuated his position as the omnipotent ruler in charge of the empire while he exiled Hisham II and essentially kept him prisoner leaving him impotent for most of his reign as the third Caliph of Cordoba. With his countless successful campaigns against Christian powers in the Spanish North such as Barcelona in 985, León in 988, as well as a major strike on the church of St. James in the Galician city of Santiago de Compostela in 998, Almanzor is known for bringing the Caliphate of Córdoba to its apex of power in Islamic Iberian history.
 Passage 3:The United States Supreme Court had ruled the Civil Rights Act of 1875 as unconstitutional in 1883. By the time of the convention the groundwork was laid for decades of segregation. On September 18, 1895, Booker T. Washington, an accommodationist, had given the Atlanta Exposition Speech, at the Cotton States and International Exposition. He was revered by followers and had critics such as William Monroe Trotter and W. E. B. Du Bois. An agreement was reached between black and white leaders that blacks would submit to white political rule in exchange for a guarantee of receiving basic education and due process in law. By 1890, Jim Crow Laws replaced black codes with a separate but equal status for black people. The United States Supreme Court Decision of Plessy v. Ferguson in 1896, stemming from the arrest of Homer Plessy in 1892, upheld racial segregation. Article 248 provided for free public separate schools, for "white and colored" races.

Answer:
1