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-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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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 city was the battle in that the 16th Indiana Volunteer Infantry fought in the Eastern Theater? Passage 1:Hunzahua, heir of Idacansas, was a cacique in the sacred valley of the iraca and was chosen by the other caciques of the region to make peace between the battling parties. He became the first zaque of the northern Muisca region based in Hunza, present-day Tunja, and one of his policies was the ban on the use of weapons. According to Muisca scholar Javier Ocampo Lopez, who wrote extensively about the religion and mythology of the Muisca, his mother was named Faravita and his sister Nonceta. Legend tells that Hunzahua fell in love with his sister and made her his wife when he left Hunza for Chipata. Faravita, the mother of the zaque, disagreed with the marriage of her two children and attacked the couple, spilling a bowl of chicha. This created the Hunzahua Well. When Hunzahua saw what his mother had done, and the Muisca protesting against his incest, he damned Hunza and the surrounding valley. Nonceta gave birth to a son in Susa, but the young boy turned into a rock. The sad couple traveled further, to the Tequendama Falls. Here, they changed into two rocks at either side of the sacred waterfall.
Passage 2:On May 20, 1861, when the Civil War began, Indiana Governor Oliver P. Morton appointed Hackleman colonel of the 16th Indiana Volunteer Infantry of one-year volunteers. Hackleman and the 16th Indiana were sent to the Eastern Theater where they were engaged at the Battle of Ball's Bluff. On April 28, 1862 he was promoted to brigadier general of volunteers and ordered to report to Ulysses S. Grant in the Western Theater. Hackleman was assigned to command the 1st Brigade in the 2nd Division of the Army of the Tennessee. The 2nd Division, led by Thomas A. Davies, was temporarily attached to William S. Rosecrans' Army of the Mississippi stationed around Corinth, Mississippi. On October 3, the Confederate Army attacked Rosecrans. Early in the fighting the Confederates forced a gap between Davies and General Thomas J. McKean's divisions and the Union line began to fall back. At this point in the battle Hackleman attempted to rally his brigade and was shot through the neck. He was taken to the Tishomingo Hotel in Corinth where he lay dying from the mortal wound. His final words were: "I am dying, but I die for my country". His body was returned to his home in Rushville where he was buried. He was the only Indiana general to be killed in battle during the Civil War.
Passage 3:The Romanoviches (Izyaslavichi of Volhynia)were the line of Roman the Great, descended from Mstislav I of Kiev through his son Iziaslav II of Kiev and his grandson Mstislav II of Kiev, father of Roman the Great. The older Monomakhovychi line that ruled Principality of Volhynia, they were eventually crowned kings of Galicia and Volhynia and ruled until 1323. Romanovychi displaced the older line of Izyaslavychi from Turov and Volhynia as well as Rostyslavychi from Galicia. The last were two brothers of Romanovychi, Andrew and Lev II, who ruled jointly and were slain trying to repel Mongol incursions. The Polish king, Wadysaw I the Elbow-high, in his letter to the Pope wrote with regret: "The two last Ruthenian kings, that had been firm shields for Poland from the Tatars, left this world and after their death Poland is directly under Tatar threat." Losing their leadership role, Rurikids, however, continued to play a vital role in the Grand Duchy of Lithuania and the later Polish-Lithuanian Commonwealth. Most notably, the Ostrogski family held the title of Grand Hetman of Lithuania and strove to preserve the Ruthenian language and Eastern Orthodoxy in this part of Europe. It is thought that the Drutsk and related princely families may also descend from Roman the Great.

Answer:
2