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-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 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 old was General Grant when the Battle of Shiloh took place? Passage 1:In the 2007 NASCAR Craftsman Truck Series, Bires was the driver of the #21 Wood Brothers Racing truck in 19 races, handing over driving duties for the other six races to veteran Mark Martin. He had a tenth-place finish at Atlanta. After the departure of Jon Wood due to illness, Bires left the Truck Series and started racing for Tad Geschickter beginning at Nashville Superspeedway. His best Busch Series start was 26th and best finish was 7th in the Meijer 300 presented by Oreo race at Kentucky Speedway. Named the permanent driver of the #47 car in 2008, Bires had six top-ten finishes en route to a 13th-place points finish. But with Clorox/Kingsford moving up with Marcos Ambrose to the Sprint Cup Series, he was left without a full-time ride at the end of the season due to lack of sponsorship.
 Passage 2:The 1935 NFL Championship Game was held on December 15, 1935, at University of Detroit Stadium (some sources call it Titan Stadium) in Detroit. The game was played in a snowstorm in front of 12,000 spectators. It was the 3rd annual title game for the NFL. The champion of the Western Division was the Detroit Lions (7–3–2) and the champion of the Eastern Division was the New York Giants (9–3). On the opening drive of the game, the Lions Glenn Presnell threw a 36-yard pass to Frank Christensen, and Ace Gutowsky threw another long pass to Ed Klewicki at the Giants' 8-yard line. Gutowsky then ran the ball into the end zone to give the Lions a 7–0 lead. The Lions scored again after Christensen intercepted a pass thrown by New York's Ed Danowski and ran it back to midfield. Three plays later, Dutch Clark ran 40 yards for a touchdown. In the fourth quarter, the Lions blocked a punt, and George Christensen recovered the ball on the Giants' 22-yard line. Ernie Caddel ran the ball in from the one-yard line for the Lions' third touchdown. The Lions added to their lead late in the game after Parker intercepted a pass from New York quarterback (and former University of Michigan star) Harry Newman on the Giants' 45-yard line and returned it to the nine-yard line. Buddy Parker ran for the touchdown as the Lions won the championship by a final score of 26–7.
 Passage 3:Union General Grant made frequent use of both companies in battle, considering them very mobile and efficient. Hotaling's skill later caught the eye of Union General Edward Ord, who appointed Hotaling and his men as his personal escort group. Hotaling commanded both companies A & B at the Battle of Fort Donelson. Hotaling and Capt. Larison commanded 126 men in the Battle of Shiloh. On November 19, 1863, Hotaling was promoted to the rank of major. After Ord was wounded, Hotaling and his men served as escort to Union General John A. Logan, who later appointed Hotaling as his personal chief of staff. In the summer of 1864, Major Hotaling served under Logan in the ranks of the XV Corps in the Battle of Atlanta. As a part of the Atlanta force, Hotaling may have taken part in Sherman's march to the sea; though, since General Logan had temporarily passed command of the XVth to General Oliver Otis Howard after Atlanta, it is not certain. Major Hotaling did serve under General Logan once more in the Carolinas Campaign.

Solution:
3