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.
Q: Question: How many gunboats did the Union Navy have? Passage 1:Until the middle of the nineteenth century, the area was occupied by farms and orchards which belonged to the residents of Baku. After the construction of the Baku Train Station in 1883, there arose a need in a paved road that would connect the station with the city. In 1887, the first telephone exchange in Baku was built here. It gave the street its first name, Telefonnaya (Telephone Street). By the end of the nineteenth century, horsecars already ran on the street. The street itself, however, continued to be regarded as a city periphery, home to the urban poor and beggars, well into the end of the nineteenth century. In 1898, it gained importance due to the construction of the first Lutheran church in Baku. In the early twentieth century, oil magnate Musa Naghiyev had the city's first multi-family residentials built on this street. In 1913, Telefonnaya was renamed to Romanovsky Prospekt (Romanov Avenue) to mark the 300th anniversary of the Romanov rule in the Russian Empire. In 1918, after Azerbaijan became independent from Russia, it was renamed to Lindley Street after Sir William Lindley who had contributed to the infrastructural development of Czar-era Baku. In 1923, after the Bolshevik power was installed in Azerbaijan, the Soviet government decided to get rid of the "bourgeois toponymy" and the street was given the name 28 April (the date of Azerbaijan's sovietisation in 1920). It was gradually built up as one or two-storey courtyard-based buildings gave way to blocks of flats, or were transformed into taller buildings through superstructures. In 1934, two massive identical Stalinist-style buildings were completed at the very beginning of the street, designed by Mikayil Huseynov and Sadikh Dadashov. One of them housed the Nizami Cinema, while the other later became the head office of AzerTaj. In the 1950s, the so-called Soldier Market was removed from the former Yarmarochnaya Square to be replaced by the Samad Vurghun Park, featuring the poet's giant statue at the entrance. In 1967, the underground of the street was traversed by the first metro line, with 28 April station built nearby. In 1991, both the street and the station were renamed to 28 May to mark the anniversary of Azerbaijan's declaration of independence in 1918. Today 28 May Street is one of the largest in the city. The traffic between Bulbul Avenue and Sorge Street is one-way from east to west. The tramway which connected the easternmost part of the street with the Black City was dismantled in the early 2000s.
 Passage 2:The opening phase of what came to be called the Burnside Expedition, the Battle of Roanoke Island was an amphibious operation of the American Civil War, fought on February 7–8, 1862, in the North Carolina Sounds a short distance south of the Virginia border. The attacking force consisted of a flotilla of gunboats of the Union Navy drawn from the North Atlantic Blockading Squadron, commanded by Flag Officer Louis M. Goldsborough, a separate group of gunboats under Union Army control, and an army division led by Brig. Gen. Ambrose Burnside. The defenders were a group of gunboats from the Confederate States Navy, termed the Mosquito Fleet, under Capt. William F. Lynch, and about 2,000 Confederate soldiers commanded locally by Brig. Gen. Henry A. Wise. The defense was augmented by four forts facing on the water approaches to Roanoke Island, and two outlying batteries. At the time of the battle, Wise was hospitalized, so leadership fell to his second in command, Col. Henry M. Shaw.
 Passage 3:Dorothy Eugenia Miner was born in New York City, New York, on 4 November 1904. She attended the Horace Mann School before she enrolled in Barnard College in 1922, receiving her bachelor's degree four years later. Miner became the first Barnard International Fellow and studied at the Bedford College of the University of London. She studied medieval manuscript illumination with Meyer Schapiro at Columbia University in 1928–29 and received a fellowship to continue working on her dissertation on a Carolingian Apocalypse manuscript the following year. Miner was hired by the Pierpont Morgan Library to prepare an exhibition of illuminated manuscripts in 1933–34 and the director of the library, Belle da Costa Greene, recommended her for the position of keeper of manuscripts at the Walters Art Gallery, in Baltimore, Maryland. She got the job and became of the first professionally trained art historians working in an American museum. She was also curator of Islamic and Near Eastern Art as well as the head of the reference library for several years. From 1938 to 1969 Miner edited the Journal of the Walter Gallery and many catalogues published by the museum. She died of cancer in Baltimore in May 1973.

A:
2