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-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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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 any rulers did the Vlastimirovic dynasty have? Passage 1:In the decline and fall of the Mughal supremacy and the rise of the Sikh power this district saw its most stirring scenes. Some of the Sikh Gurus have been closely associated with the district. Guru Nanak, born in 1469 in the Lahore district, married in 1485 with Sulkhani, daughter of Mool Chand, a Khatri of Pakhoke (Dera Baba Nanak) in the Batala Tehsil. There is still a wall known as Jhoolana Mahal which swings in Gurdaspur. The Sikh Guru Hargobind refounded Sri Hargobindpur which had been formerly known by the name of Rahila. Banda Singh Bahadur, the disciple of Guru Gobind Singh used this district as a base to raid the country up to Lahore, the emperor Bahadur Shah conducted an expedition against him in 1711 but with only temporary effect. Banda Bahadar fought his last battle with the Mughal at Gurdas Nangal in the district and was captured. The history of the district then degenerates into an account of their struggles with the rival Ramgarhia Misl and Kanhaiya Misls for supremacy in this part of the Doab, the power of the former was broken in 1808 and of the latter in 1811.
Passage 2:The Allied force was the British Mediterranean fleet, consisting of the aircraft carrier HMS Formidable and the battleships , , and Warspite. The main fleet was accompanied by the 10th Destroyer Flotilla ( and , and , commanded by Commander "Hec" Waller, RAN), and the 14th Destroyer Flotilla (, , , and , commanded by Philip Mack); also present were and . Force B, under Admiral Sir Henry Pridham-Wippell, consisted of the British light cruisers , , and , the Australian light cruiser , and the British destroyers , , and . The Australian had returned to Alexandria. Allied warships attached to convoys were available: , , and waited in the Kithira Channel and , , , and and were nearby.
Passage 3:In the 9th and 10th centuries, the Zupa of Travunia was held by the Belojevic noble family, who were entitled the rule during the reign of Prince Vlastimir (r. 830850), of the Vlastimirovic dynasty. After the death of Caslav, the last dynastic member, the principality disintegrated, and the provinces were annexed by the Bulgars and Byzantines. In 1034, Stefan Vojislav (the founder of the Vojislavljevic dynasty) incited a rebellion and renounced Byzantine rule, becoming the Prince of Serbs, ruling from the seat at Duklja. In the early 12th century, Desa of the Vukanovic dynasty wrestled the region, and it continued under the rule of the Nemanjic dynasty (11661371), either held by dynastic members or close associates (most often military commanders), of which was the notable Vojinovic noble family. After Nikola Altomanovic, the holder of a large province during the fall of the Serbian Empire, was defeated in 1373, his estates were divided between Prince Lazar Hrebeljanovic of Serbia, ura I Balsic of Zeta, and Ban Tvrtko I Kotromanic of Bosnia. Trebinje continued under the Bosnian crown in the hands of the Pavlovic family, then in 1435, it became part of the Duchy of Saint Sava of the Kosaca family, in Ottoman vassalage. It was finally annexed in 1482 by the Ottomans and organized into the Sanjak of Herzegovina.

Solution:
3