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 did Ion Macovei die? Passage 1:Born in Nereju, Vrancea County, he attended a polytechnic institute in Germany and became an engineer. Hired by the state railway carrier Căile Ferate Române in 1911, he rose through the ranks from maintenance work at Adjud and Bârlad to inspector at Galați in 1919 to deputy department head (1931) and department head (1932), before becoming deputy general director in 1935 and general director in 1936. On June 1, 1940, he entered the cabinet of Gheorghe Tătărescu as Minister of Public Works and Communications. He replaced Ion Gigurtu, who in turn replaced Grigore Gafencu as Foreign Minister. The latter had resigned in protest against the backdrop of German victories in Western Europe. When Gigurtu ascended to the post of Prime Minister on July 4, Macovei remained in his cabinet. The final phase of his ministerial service lasted from September 4 to 14, from the time Ion Antonescu assumed power to the establishment of the National Legionary State. Arrested by the communist regime in May 1950, he died at Sighet prison five months later. His wife Ecaterina was arrested in 1952.
 Passage 2:Sebastián Edwards (born 16 August 1953, Santiago, Chile) a member of the Edwards family is a Chilean economist, professor, speaker, and consultant. He is currently the Henry Ford II Professor of International Business Economics at the UCLA Anderson School of Management at the University of California, Los Angeles (UCLA). From 1993 until April 1996, he was the Chief Economist for the Latin America and Caribbean Region of the World Bank. He is also a research associate of the National Bureau of Economic Research (NBER), a member of the advisory board of Transnational Research Corporation and co-chairman of the Inter American Seminar on Economics (IASE). He is the Past President of the Latin American and Caribbean Economic Association (LACEA), an international professional association of economists with academic interests in Latin America and the Caribbean region. He was a member of the Scientific Advisory Council of the Kiel Institute of World Economics, Kiel-Germany. He is a member of California Governor Arnold Schwarzenegger's Council of Economic Advisors.
 Passage 3:In 221, warlord Sun Quan moved the capital of Eastern Wu from Gong'an county, Jingzhou (northwest of present-day Gong'an county, Hubei) to È county (in present-day Ezhou City), and renamed È to Wuchang (literally prospering from military, regarding its logistics role of the military bases established before the Battle of Red Cliffs). Later in the year Cao Pi proclaimed himself the emperor of Cao Wei. Sun Quan declared independence in the following year, and started to build forts and palaces in Wuchang. Sun Quan proclaimed himself the emperor of Eastern Wu in 229, and moved the capital to Jianye. Sun Hao, the emperor of Eastern Wu between 264 and 280, moved the capital back to Wuchang in 265. In 589, the Wuchang commandery was abolished and the Wuchang county was transferred to a new commandery named Ezhou (headquartered in present-day Wuchang District), and remained in the administration since then.

Answer:
1