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.

Ex Input:
Question: Which of the seas that the Sibiryakov sailed to was larger? Passage:A. Sibiryakov sailed on 28 June 1932 from the Krasny (previously Sobornoy) docks in Arkhangelsk, crossed the Kara Sea and chose a northern, unexplored way around Severnaya Zemlya to the Laptev Sea. In September, after calling at Tiksi and the mouth of the Kolyma, the propeller shaft broke and the icebreaker drifted for 11 days. However, A. Sibiryakov crossed the Chukchi Sea using improvised sails and arrived in the Bering Strait in October. A. Sibiryakov reached the Japanese port of Yokohama after 65 days, having covered more than in the Arctic seas. This was regarded as a heroic feat of Soviet polar seamen and Chief of Expedition Otto Schmidt and Captain Vladimir Voronin were received with many honors at their return to Russia.
Links: a. Arkhangelsk b. Tiksi c. Kara Sea d. Kolyma

Ex Output:
c

Ex Input:
Question: Did Vordtriede's family join him in America beside his mother? Passage:After the Nazis came to power, he emigrated to Switzerland in 1933 and to the United States later. He began his studies in Zurich and worked part-time as a house teacher. Meanwhile, he wrote articles and book reviews for the Neue Zurcher Zeitung, using several pseudonyms because of prohibition of work. He earned his PhD and taught French and German Literature at various universities, including Princeton University and University of Wisconsin-Madison. During a journey to Europe, Vordtriede was surprised by the outbreak of the Second World War and interned as an Enemy alien in occupied France. By interventions, he became free months later and was allowed to go back to America. He met his mother in New York City late in 1941, who also emigrated to the USA. He received the American citizenship in 1946 and became a Guggenheim Fellow in 1957. His sister Franze emigrated in 1947 and went to Philadelphia.
Links: a. University of WisconsinMadison b. Philadelphia c. University of WisconsinMadison d. Switzerland

Ex Output:
b

Ex Input:
Question: How old was Danny Green the year that Marriott signed for League Two club Luton Town on a one-year contract? Passage:Marriott signed for League Two club Luton Town on a one-year contract on 20 May 2015. He made his debut as a 76th-minute substitute for Danny Green in a 11 draw away to Accrington Stanley on the opening day of 201516. Marriott scored his first goals for Luton in the following match, a 31 win at home to newly promoted Championship club Bristol City in the League Cup first round. This performance saw him named in the League Cup team of the round. Marriott signed a contract extension with Luton on 25 August until June 2017, with triggers to extend it for a further two years. He was shown a red card for making a gesture to the Leyton Orient fans in Luton's 21 win in the Football League Trophy on 1 September. Luton manager John Still, who was adamant he didn't deserve the red card said, "He shouldn't have done it but the punishment didn't fit the crime." Marriott scored a brace in consecutive substitute appearances against AFC Wimbledon and Hartlepool United, which resulted in two wins in a week to increase his tally for the season to six goals. He went on to score twice in 20 appearances, including a goalless drought of 10 matches, before scoring a consolation goal in a 41 defeat away to AFC Wimbledon on 13 February 2016. A return to form saw Marriott score four goals in five matches and increased his tally for the season to 12 goals after a 10 win away to Leyton Orient on 5 March. Marriott was named Luton Town Player of the Season, voted for by the club's supporters, and joint winner of the Luton Town Young Player of the Season award along with Cameron McGeehan on 1 May, chosen by the Luton Town management team. His fourth brace of 201516 in a 41 win at home to Exeter City on 7 May saw him finish the season as Luton's top scorer with 16 goals in 44 appearances. Marriott signed a new three-year contract with Luton on 20 July.
Links: a. AFC Wimbledon b. Accrington Stanley F.C. c. Danny Green (footballer, born 1988) d. EFL Championship

Ex Output:
c