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.
One 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-Lo 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 (18941973) 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 is here: 1
Explanation: The question refers to the 704th unit and task about war which is decribed by Passage 1.

Now, solve this: Question: How long had Ronald Reagan been President of the United States when the Falklands war began? Passage 1:The Union for Democratic Renewal (Union pour la Renouveau Democratique) was a coalition of political parties in the Republic of the Congo. The coalition was led by Bernard Kolelas, who was also the leader of the coalition's largest party, the Congolese Movement for Democracy and Integral Development (MCDDI). The URD parties supported the transitional government of Prime Minister Andre Milongo (19911992) and opposed the National Alliance for Democracy (AND), which included the Pan-African Union for Social Democracy (UPADS) and the Congolese Labour Party (PCT). In the parliamentary election held in JuneJuly 1992, the AND parties won a slight majority of seats in the National Assembly and UPADS leader Pascal Lissouba was victorious over Kolelas in the August 1992 presidential election.
Passage 2:He graduated from the University of Damascus in 1923 with a degree in law, and joined the city government in 1925. At this time he also actively ran his family's estates throughout the country. In the 1930s, he became close associates with leading members of the anti-French National Bloc coalition such as future presidents Hashim al-Atassi and Shukri al-Kuwatli. He remained a longtime supporter of the former, but often quarreled with the latter, whom he accused of being too authoritarian. In 1941 the French appointed him Prime Minister and Acting President, having had no success in finding a viable candidate since the resignation of the nationalist Atassi in 1939. However he was replaced 5 months later with a French loyalist, Taj al-Din al-Hasani. Azm served repeatedly in parliament and in the cabinet from 1943 to 1947. He became a focus of opposition when he resigned from the cabinet in 1945 and lead the forces opposed to Kuwatli's drive to amend the constitution to allow himself a second term in office. Kuwatli prevailed, and Azm ran against him in 1947 and lost. However he accepted the position of envoy to France and served in that capacity for a year. He concluded successful arms purchases from France and later from the Soviet Union. In May 1948, Azm agreed to form a multi-party cabinet under Kuwatli which served until March 1949. He allied himself with France and the United States and attempted to obtain loans from them for domestic development. He traveled frequently to attend United Nations assemblies on the Palestinian problem. Azm clashed with members of the military, especially Chief of Staff Husni al-Za'im. The latter launched a coup d'etat on 29 March 1949 and imprisoned both Azm and president Kuwatli. When Za'im was overthrown five months later, Azm returned to parliament as deputy for Damascus and became minister of finance. He was also elected into the Constituent Assembly that drafted a new constitution for Syria. He became Prime Minister again under Hashim al-Atassi's second administration, in June 1950, heading three cabinets between then and 1951. Azm closed the border to Lebanese goods in an attempt to prevent the crash of domestic Syrian industry due to rampant Lebanese imports. He also clashed repeatedly with the military because he refused to appoint officers in any of his cabinets, and always reserved the defense portfolio for himself. He also clashed with pro-Hashemite elements in Syrian politics that advocated union with Iraq. Socialists distrusted him because of his aristocratic and wealthy Ottoman background. Azm left the public arena from 1951 to 1954 in protest over the coup of Adib al-Shishakli which toppled Atassi's democratic administration.
Passage 3:On December 1, 1981, United States President Ronald Reagan signed a presidential finding which authorized covert operations in Nicaragua. This plan initially called for the U.S. government to cooperate with the Argentinian government, which was already engaged in a similar operation, to train and fund an existing terrorist group in Nicaragua known as the Contras. The Contras also contributed to drug dealing in the US and brought a lot of crack cocaine. A reporter for the San Jose Mercury News proved the connection between the crack epidemic and the Contras. Initially the Contras were a group of republican guard members from the old Somoza regime ousted by the Sandinistas after the revolutionary conflict. Later, through the recruitment efforts of the CIA, the group became supplemented by mercenary guerrillas and was extensively trained by the CIA. Eventually, due to the U.S. alliance with Great Britain during the Falklands war, Argentina withdrew support for these programs and the CIA had to relocate their training sites to Honduras.

Solution:
3