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: How long after the construction of the cathedral where Rachel Treweek became the 41st Bishop was she installed there? Passage:On 26 March 2015, it was announced that Treweek was to become the next Bishop of Gloucester, the diocesan bishop of the Diocese of Gloucester. Though there had been two women appointed bishops previously in the Church of England, she was the first woman to be appointed a diocesan bishop, rather than as a suffragan bishop. She was the first woman to become a bishop in the Province of Canterbury, jointly with Sarah Mullally, Bishop of Crediton. On 15 June 2015, her election was confirmed during a sitting of the Arches Court of Canterbury at St Mary-le-Bow, City of London. At this point, she legally became the Bishop of Gloucester. On 22 July 2015, she was consecrated a bishop by Justin Welby, the Archbishop of Canterbury, during a ceremony at Canterbury Cathedral. She and Sarah Mullally (later Bishop of London) were the first women to be ordained as bishops at Canterbury Cathedral. On 19 September, she was installed at Gloucester Cathedral as the 41st Bishop of Gloucester.
 Links: a. Gloucester Cathedral b. Gloucester Cathedral c. Province of Canterbury d. Diocesan bishop
Example Output: a

Example Input: Question: When was Taylor's place of birth founded? Passage:Taylor was born in 1861 in Peckham, to John and Mary Jane Cash. He worked in stockbroker's office in London and in 1880s he emigrated to South Africa and than to Western Australia in early 1890 following the Ashburton rush. In January 1891, he settled in Southern Cross, where he worked as a merchant and stockbroker. Three years later, he moved his operations at Coolgardie, where a promising gold field had been just discovered. Sitting at the town council, he was elected on 3 August 1896 one of the three members of the Western Australian Legislative Council for the East Province. He was one of the ten Western Australia representatives at the 1897-1898 Australasian Federal Convention, which prepared the federation. He left the council in 1899 to focus on speculative developments. He made estimated 250,000 pounds in speculating in Australia, before moving back to Europe to speculate on London Stock Exchange.
 Links: a. Coolgardie, Western Australia b. Federation of Australia c. Peckham d. Federation of Australia
Example Output: c

Example Input: Question: Of the three presumed first members, which of the small states was the smallest? Passage:An ancient Amphictyony, probably the earliest centered on the cult of Demeter at Anthele or Anthela (Ἀνθήλη), which lay on the coast of Malis south of Thessaly. This was the locality of Thermopylae. Thus those living near the temple were called Amphictyones ("dwellers-round"). The immediate "dwellers-round", presumably the first members, were the small states Aeniania, Malis and Doris. Certainly Thessaly did have a share including the states of the Boeotian tribes who lived around Thessaly (perioikoi, "living around"). Boeotia and Phocis, the most remote of them may have joined during or after the "First Sacred War", which led to the defeat of the old priesthood, and to a new control of the prosperity of the oracle at Delphi. As a result of the war, the Anthelan body was known henceforth as the Delphic Amphictyony and became the official overseer and military defender of the Delphic cult. The name of Hellenes, which was originally the name of a Boeotian tribe in Thessalic Phthia, (Achaea Phthiotis) may likely be related to the members of that league and may have been broadened to refer to all Greeks when the myth of their patriarch Hellen was invented.
 Links: a. Regions of ancient Greece b. Hellen c. Regions of ancient Greece d. Phthia
Example Output:
a