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: What was the total attendance at Duke University the final year that Poteat was a professor there? Passage 1:William H. Poteat (19 April 1919 – 17 May 2000) was an American philosopher, scholar, and charismatic professor of philosophy, religion, and culture at the University of North Carolina at Chapel Hill from 1947 to 1957 and at Duke University from 1960 to 1987. During that time he did foundational work in the critique of Modern and Postmodern intellectual culture. He was instrumental in introducing scientist-philosopher Michael Polanyi and his Post-Critical philosophy to the United States. He was a master of the Socratic Method of teaching and identified himself a "practicing dialectician," skilled through the use of irony in "understanding and elucidating conflicting points of view" As a Post-Critical philosopher, he encouraged his students and the readers of his books to recover their authentic selves from the confusing, self-alienating abstractions of modern intellectual life. This task and purpose Poteat came to recognize as profoundly convergent with Michael Polanyi's critique of Modern Critical thought. His teaching and writing also drew upon and combined in new ways the ideas of seminal critics of modern culture such as Pascal, Kierkegaard, Arendt, Wittgenstein (later works), and Merleau-Ponty—whose thinking Poteat came to identify as "Post-Critical" (rather than Postmodern), using a key concept from Michael Polanyi's Personal Knowledge: Towards a Post-Critical Philosophy. His papers are archived at the Yale Divinity School Library.
 Passage 2:Moore started writing for British underground and alternative fanzines in the late 1970s before achieving success publishing comic strips in such magazines as 2000 AD and Warrior. He was subsequently picked up by the American DC Comics, and as "the first comics writer living in Britain to do prominent work in America", he worked on major characters such as Batman () and Superman (), substantially developed the character Swamp Thing, and penned original titles such as Watchmen. During that decade, Moore helped to bring about greater social respectability for comics in the United States and United Kingdom. He prefers the term "comic" to "graphic novel". In the late 1980s and early 1990s he left the comic industry mainstream and went independent for a while, working on experimental work such as the epic From Hell and the prose novel Voice of the Fire. He subsequently returned to the mainstream later in the 1990s, working for Image Comics, before developing America's Best Comics, an imprint through which he published works such as The League of Extraordinary Gentlemen and the occult-based Promethea. In 2016, he published Jerusalem: a 1266-page experimental novel set in his hometown of Northampton, UK.
 Passage 3:Saint Mari, also known as Mares and originally named Palut, is a saint of the Church of the East. He was converted by Thaddeus of Edessa (a.k.a. Addai) and is said to have had Mar Aggai as his spiritual director. He is believed to have done missionary work around Nineveh, Nisibis, and along the Euphrates, and is said to have been one of the great apostles to Syria and Persia. He was buried in Dair-Kuni. His feast day is 5 August in the Christian calendar. He and Thaddeus are credited with the Liturgy of Addai and Mari. Despite the fact that there is little, if any, concrete information on Mari, he is still venerated as a saint by the Assyrian Church of the East, the Chaldean Catholic Church, the Roman Catholic Church, and the Syro-Malabar Catholic Church. He is distinct from St Mari of the seventy disciples with whom the Apocryphal Acts of Mar Mari are connected.

Answer:
1