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.

Question: Was the island used for filming in February and March the most populous in its country? Passage 1:Gamble was born in the townland of Duross, Lisnarick, County Fermanagh, Ireland. He studied civil engineering, worked in the Queen's Surveying Office, and participated in the Northern Ireland survey. He emigrated to the United States in 1838. Since he had experience as a dragoon in the British army, he enlisted as a private in the 1st U.S. Dragoons and rose through the ranks to become Sergeant Major by 1839. While in the Army he married Sophia Steingrandt, daughter of King's German Legion Feldwebel Georg Steingrandt, on 6 May 1841, and they had 13 (by some accounts 15) children together. After fighting in the Seminole Wars, he was discharged in 1843 and worked as a civil engineer for the Board of Public Works in Chicago and lived in Evanston, Illinois. His house is now used by the Anthropology Department of Northwestern University.
 Passage 2:After Prague, the production moved to the Bahamas. Several locations around New Providence were used for filming during February and March, particularly on Paradise Island. Footage set in Mbale, Uganda, was filmed at Black Park, a Country Park in Buckinghamshire, on 4 July 2006. Additional scenes took place at Albany House, an estate owned by golfers Ernie Els and Tiger Woods. The crew returned to the Czech Republic in April, and continued there, filming in Prague, Planá and Loket, before completing in the town of Karlovy Vary in May. A famous Czech spa, Karlovy Vary, in German known as the Karlsbad, was used as the exterior of the Casino Royale, with the Grandhotel Pupp serving as "Hotel Splendide". The main Italian location was Venice, where the majority of the film's ending is set. Other scenes in the latter half of the film were shot in late May and early June at the Villa del Balbianello on the shores of Lake Como. Further exterior shooting for the movie took place at properties such as the Villa la Gaeta, near the lakeside town of Menaggio.
 Passage 3:For seven years, Meyer was the Republican chairman of Dallas County; under his tenure the county became heavily Republican in orientation for two decades but reverted to Democratic majority strength in 2006. In 1972, Meyer was the campaign manager in the long-shot race waged by Alan Steelman, a young Republican who unseated Earle Cabell as U.S. representative for Texas's 3rd congressional district, a post once held by the earlier Republican Bruce Alger. Cabell was also a former mayor of Dallas. Steelman. however, gave up the seat in 1976 in a losing bid against Democratic U.S. Senator Lloyd M. Bentsen. In 1984, Meyer as chairman of the host committee worked to bring the Republican National Convention to Dallas. He lost a nonpartisan race himself in 1987 for mayor of Dallas to the Democrat Annette Strauss but became state chairman the next year for the first of three two-year terms. He helped Vice President George Bush win the presidency over Michael Dukakis, with their old mutual rival, Lloyd Bentsen, seeking to succeed Bush as vice president but losing out to Republican nominee Dan Quayle.
2