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: 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
[A]: c


[Q]: Question: How long had Darrell Royal been working as a head coach the year he learned about the wishbone offense? Passage:In 1968, Texas head coach Darrell Royal and his offensive coordinator Emory Bellard introduced what would become known as the wishbone offense. The wishbone was derived from the Split-T offense run at Oklahoma under Bud Wilkinson. In the formation, the quarterback lines up with a fullback and two tailbacks behind him, and on any play may keep the ball, hand off to the fullback, or pitch to a tailback. From the time Bryant arrived at Alabama through the 1970 season, the Crimson Tide ran a pro-style offense. By 1969, Bryant began to recruit larger linemen and tailbacks, and after a pair of six win seasons in 1969 and 1970, Bryant saw the success of the wishbone for the Longhorns and decided to implement the offense for the 1971 season. In spring 1971, Alabama assistants Mal Moore and Jimmy Sharpe traveled to Austin where they saw first hand how the wishbone operated during Texas' final week of spring practice.
 Links: a. Darrell Royal b. Wishbone formation c. Bud Wilkinson d. Emory Bellard
[A]: a


[Q]: Question: How long had Bristol City F.C. been a team when Ball scored his first goal for the senior team? Passage:In July 2011, Ball signed a new three-year contract, which extended his stay at the Pride Park club until at least 2014. Ball scored his first senior goal for the club in a 2–1 win at home to Bristol City on 10 December 2011. Ball then scored the opening goal of the game against West Ham which was a great curling effort form the edge of the area after being played in by Nathan Tyson, this was the second former England goal keeper (Robert Green) he had scored against after scoring his first goal against David James. Ball scored his 3rd goal for derby, which proved to be the winner against Coventry City, once again this proved to be a goal against an internationally capped goal keeper in Joe Murphy who at the time had been capped twice by the Republic of Ireland. Ball became a regular in the Rams matchday 16 until he picked up an ankle injury in a reserves game against Belper Town on 26 March 2012. Ball returned from injury a 3–2 reserve win against Sunderland Reserves in the Totesport Cup semi-final game on 19 April 2012, playing the whole 90 minutes in central defence.
 Links: a. Bristol City F.C. b. Bristol City F.C. c. Joe Murphy (footballer, born 1981) d. Joe Murphy (footballer, born 1981)
[A]:
a