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.

Example Input: Question: When was the gunnery school David moved to in 1932 built? Passage:He was assigned as a midshipman on 1 May 1929 after finishing top of his class in five subjects. In 1930 he was assigned to the battleship Marlborough, part of the Third Battle Squadron; and the following year to the battlecruiser in September 1931 on which he served with fellow midshipman, and future vice admiral, Peter Gretton. While serving on the ship, Wanklyn was promoted to acting sub-lieutenant (the equivalent of an army second lieutenant) on 1 January 1932. Soon afterwards he moved to the naval gunnery school - HMS Excellent - at Whale Island, Portsmouth to learn more about naval navigation to qualify for his second ring at the rank of lieutenant. In February 1933 he moved to HMS Dolphin and was promoted to lieutenant on 1 February 1933.
 Links: a. Excellent b. Battlecruiser c. Vice admiral d. Whale Island, Hampshire
Example Output: a

Example Input: Question: How many people did Arnstadt command as a company commander of the 6th border company in Dermbach? Passage:In June 1949, Arnstadt registered for service with the Volkspolizei, the police force of the Soviet Occupation Zone, becoming an Anwärter der VP (police cadet) with the Kasernierte Volkspolizei in Gotha. In March 1950, Arnstadt was appointed to the German Border Police (Deutsche Grenzpolizei) in Dermbach, patrolling the Inner German border with West Germany. In 1952, Arnstadt failed his first attempt to become an officer at the police school in Sondershausen. In 1953, his marriage ended in divorce, with his two children Veronika and Uwe staying with the mother, and remarried shortly after. In 1954, Arnstadt passed his officer training at Sondershausen and was appointed the rank of Unterleutnant, and the following year was promoted to lieutenant. Arnstadt functioned as a recruiter for the German Border Police until 1957 when he was appointed as a company commander of the 6th border company in Dermbach. Arnstadt was responsible for a section of the border at Wiesenfeld, a region of Bezirk Suhl in the Rhön Mountains at the westernmost point of the Warsaw Pact. Arnstadt's section contained the highly-strategic Fulda Gap, which aroused the special interest of NATO, and a short distance from the US Army's Observation Post Alpha. Arnstadt moved with his wife to Wiesenfeld and in April 1957 became an unofficial collaborator (Geheimer Informator) of the Ministry for State Security (Stasi) until this relationship was ended fourteen months later. 
 Links: a. Company commander b. Inner German border c. Dermbach d. Kasernierte Volkspolizei
Example Output: a

Example Input: Question: Did Charles Jones win any tests in the Caribbean? Passage:In 1930, when the MCC visited the Caribbean under the leadership of F.S.G. Calthorpe, Jones played against them three times in February, twice for British Guiana and once whilst making his Test Match debut. His selection for the 3rd Test of the four-match series, played at Bourda, Georgetown was more to do with the West Indies’ usual policy of using a few players from the host island in an effort to keep the expenses down. In an historic victory over England, Jones’ contribution was minimal, scoring just 6 and 2, taking two catches but failing to take a wicket with the ball. He played only occasionally for the next five years but aided by some useful scores with the bat in that time, Jones made a further three Test appearances against England sides led by R.E.S. Wyatt in 1935. In the second Test of the series, played at Port-of-Spain, Trinidad, and where he opened with C.M. Christiani, he scored 19 runs in both innings. This subsequently proved to be his highest Test score but he failed to take a single Test wicket in his career. In all first-class matches he took 24 wickets at an average of 44.12 apiece and scored 917 runs at an average of 21.83. In a career that ended in January 1939, his highest score was an unbeaten 89, scored at home in a comprehensive victory over Barbados. No Obituary appeared within the pages of Wisden for Jones.
 Links: a. Caribbean b. Marylebone Cricket Club c. Marylebone Cricket Club d. Bourda
Example Output:
b