In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Q: Question: How many years were there between the end of the British Burma Campaign and the start of the Battle of Na San? Passage:The First Indochina War had raged, as guerrilla warfare, since 19 December 1946. From 1949, it evolved into conventional warfare, due largely to aid from the communists of the People's Republic of China ("PRC") to the north. Subsequently, the French strategy of occupying small, poorly defended outposts throughout Indochina, particularly along the Vietnamese-Chinese border, started failing. Thanks to the terrain, popular support for August Revolution and support for decolonization from bordering China and the U.S.S.R., the Viet Minh had succeeded in turning a "clandestine guerrilla movement into a powerful conventional army", following asymmetric warfare theory laid by Mao Tse Tung, something which previously had never been encountered by the western colonial powers. In October 1952, fighting around the Red River Delta spread into the Thai Highlands, resulting in the Battle of Nà Sản, at which the Viet Minh were defeated. The French used the lessons learned at Nà Sản – strong ground bases, versatile air support, and a model based on the British Burma Campaign – as the basis for their new strategy. The Viet Minh, however, remained unbeatable in the highland regions of Vietnam, and the French "could not offset the fundamental disadvantages of a roadbound army facing a hill and forest army in a country which had few roads but a great many hills and forests".
 Links: a. China b. On Guerrilla Warfare c. Battle of Nà Sản d. China

A: c
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Q: Question: Which of the teams Boswell played for was the oldest? Passage:Born in Chester, Boswell joined local football club Chester F.C. upon leaving school, initially as an amateur. He remained with the club until the outbreak of the Second World War, but never made it to the club's first team. During the war he served with the Royal Engineers and also made appearances as a guest player for Sheffield Wednesday during unofficial wartime competitions. He was later posted to Barton Stacey in Hampshire, where he helped his unit's football team win a major Army Football Association trophy. Upon leaving the army in 1946 he joined Gillingham, who at the time were playing in the Kent League. Gillingham manager Archie Clark also signed four other players who had served with Boswell at Barton Stacey and played alongside him in the unit football team, namely Jackie Briggs, George Forrester, Hughie Russell and Vic Hole.
 Links: a. Chester City F.C. b. Army Football Association c. Hampshire d. Kent Football League (1894–1959)

A: a
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Q: Question: What year was the company that released Yorke's solo album founded? Passage:English musician Thom Yorke has released three studio albums, one soundtrack album, two extended plays, one compilation album, and sixteen singles. The frontman of the alternative rock band Radiohead since 1985, Yorke's first singles as a solo artist were as a featured vocalist on the singles "El President" by Drugstore (which reached the top 20 in the UK) and "Rabbit in Your Headlights" by Unkle. Yorke embarked on a solo career in 2006 whilst still a member of Radiohead with his debut solo album The Eraser, an exploration of electronica. The album was released by XL Recordings, peaking at number three on the UK Albums Chart and number two on the Billboard 200, and included Yorke's highest-charting single, "Harrowdown Hill". An extended play consisting of B-sides, Spitting Feathers, and a remix album, The Eraser Rmxs, were issued in 2006 and 2008, respectively.
 Links: a. Radiohead b. XL Recordings c. Radiohead d. XL Recordings

A:
b
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