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 two who collaborated together in the Dark Knight Trilogy films is older? Passage:Michael Caine is an English actor who has appeared in over 130 films and has had multiple television appearances. Caine's acting career began in the 1950s, when he was cast in many small, often uncredited roles in British films. Caine gained recognition as one of the most famous actors of the 1960s through his breakthrough role in the film Zulu (1964). He then portrayed spy Harry Palmer in the films The Ipcress File (1965), Funeral in Berlin (1966) and Billion Dollar Brain (1967). He also had starring roles in The Italian Job and Battle of Britain (both 1969). His role in Sleuth (1972) led him to an Academy Award for Best Actor nomination. Caine has won a Best Supporting Actor Oscar for the films Hannah and Her Sisters (1986) and The Cider House Rules (1999). More recently, Caine has gained a new following through his collaborations with British-American filmmaker Christopher Nolan in the Dark Knight Trilogy films, as well as Inception (2010) and Interstellar (2014).
Links: a. Michael Caine b. Funeral in Berlin (film) c. Christopher Nolan d. Zulu (1964 film)

Ex Output:
a

Ex Input:
Question: What position does the person who moved Donnelly to Western Economic Diversification currently hold? Passage:Fin Donnelly (born May 27, 1966) is a Canadian politician, who was elected to the House of Commons of Canada to represent the electoral district of Port MoodyCoquitlam. He is a member of the New Democratic Party. Donnelly was first elected as a member of parliament in a by-election on November 9, 2009, in the New WestminsterCoquitlam electoral district. In the one year he spent in the 40th Canadian Parliament, he acted as the party's fisheries critic and introduced six private member bills. He was re-elected in 2011 and in the ensuing 41st Parliament he re-introduced the same six bills, two of which, concerning the crime of luring a child were adopted, were adopted in the Safe Streets and Communities Act. He also introduced the bill titled Ban on Shark Fin Importation Act which was voted upon but defeated by the Conservative Party majority. He acted was the official opposition's critic on Fisheries and Oceans until the 2012 leadership election after which Tom Mulcair moved him over to critic on Western Economic Diversification and then demoted him to role of deputy critic. Donnelly again won re-election in the 2015 federal election and was promoted back to fisheries critic. In the 42nd Parliament he re-introduced his previous bill to make closed containment facilities mandatory for commercial finfish aquaculture but the bill was defeated.
Links: a. Tom Mulcair b. New Democratic Party c. Western Economic Diversification Canada d. House of Commons of Canada

Ex Output:
a

Ex Input:
Question: How many copies did the final single from the Wolfmother album sold? Passage:After its success in Australia, Wolfmother was later released internationally in early 2006 on 24 April in the UK, where it reached number 25 on the UK Albums Chart, and on 2 May in the US, where it reached number 22 on the Billboard 200. A number of singles were released from the album, including "Woman" which reached number 34 in Australia, number 31 on the UK Singles Chart, and number 7 on the US Billboard Mainstream Rock chart. The song later won the Grammy Award for Best Hard Rock Performance at the 49th Annual Grammy Awards, the nomination for which Heskett had previously described as "an honour". The final single from the album, "Joker & the Thief", later reached the top ten in Australia. The subsequent worldwide tour included appearances at festivals such as Fuji Rock in Tokyo, Japan, the inaugural Virgin Festival, and Reading and Leeds Festivals in the UK. On 14 November 2006, the band performed a cover version of "Communication Breakdown" by English hard rock band Led Zeppelin as a tribute to the band for their induction into the UK Music Hall of Fame.
Links: a. 49th Annual Grammy Awards b. Tokyo c. Joker & the Thief d. Woman (Wolfmother song)

Ex Output:
c