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: What was the Hertford Town club record the year that Scott Neilson joined? Passage:Neilson was a member of Norwich City's youth teams at the age of 11, went on to Charlton Athletic and also won schoolboy honours for Wales. His senior career started at his brother Tony's club Hertford Town of the Isthmian League in 2005. He was top goalscorer for the reserves when he made his debut on 25 October in an Isthmian League Associate Members Trophy game against Clapton, before going on to play 15 games in his first season and scoring one goal. In his second season, he played 24 games upping his goal tally by another nine, before he earned a move in December 2006 to Ware a second club where his brother also played. In one game in January 2008, Neilson came off the bench to score four goals for Ware against Tilbury in a 52 victory. The goals went towards Neilson's total of 23 from 40 games for Ware in the Isthmian League First Division North, helping Ware towards the end-of-season play-offs. However, he left Ware before the end of the season to join Cambridge City in March 2008 for the rest of the club's Conference South campaign.
Links: a. Hertford Town F.C. b. Cambridge City F.C. c. Isthmian League d. Clapton F.C.
Example Output: a

Example Input: Question: How many species of the Aru Flying fox are there? Passage:Of the 62 flying fox species evaluated by the IUCN as of 2018, 3 are considered critically endangered: the Aru flying fox, Livingstone's fruit bat, and the Vanikoro flying fox. Another 7 species are listed as endangered; 20 are listed as vulnerable, 6 as near threatened, 14 as least concern, and 8 as data deficient. A further 4 are listed as extinct: the dusky flying fox, the large Palau flying fox, the small Mauritian flying fox, and the Guam flying fox. Over half of the species are threatened today with extinction, and in particular in the Pacific, a number of species have died out as a result of hunting, deforestation, and predation by invasive species. Six flying fox species are believed to have gone extinct from 1864 to 2014: the Guam, large Palau, small Mauritian, dusky, large Samoan, and the small Samoan flying foxes.
Links: a. Endangered species b. Vanikoro flying fox c. Aru flying fox d. Critically endangered
Example Output: c

Example Input: Question: Which was the larger of the three departments created by Liguria's division by Napoleon? Passage:The value of trade routes through Genoa to the Near East declined during the Age of Discovery, when Portuguese explorers discovered routes to Asia around the Cape of Good Hope. The international crises of the seventeenth century, which ended for Genoa with the 1684 bombardment by Louis XIV's fleet, restored French influence over the republic. Consequently, the Ligurian territory was crossed by the Piedmontese and Austrian armies when these two states came into conflict with France. Austria occupied Genoa in 1746, but the Habsburg troops were driven away by a popular insurrection. Napoleon's first Italian campaign marked the end of the oligarchic Genoese state, which was transformed into the Ligurian Republic, modelled on the French Republic. After the union of Oneglia and Loano (1801), Liguria was annexed to the French Empire (1805) and divided by Napoleon into three departments: Montenotte (department), with capital Savona, Genes, with capital Genoa and the department of the Apennines, with the capital Chiavari.
Links: a. Savona b. Louis XIV of France c. Holy Roman Empire d. Apennine Mountains
Example Output:
a