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: Is the team that Duke City lost to in the 2007 WFTDA WEstern Regional Tournament quarterfinals still active? Passage:Duke City's all-star travel team, the Mueñcas Muertas, represented the league at the first WFTDA Championships in 2006, where they finished 19th out of 20 teams. At the 2007 WFTDA Western Regional Tournament Duke City won their opening game 110-82 over the Rocky Mountain Rollergirls, but then lost to Tucson Roller Derby in the quarterfinals, 166-41. At the 2008 Western Regional, Duke City opened with a victory over Pikes Peak Derby Dames and then upset the defending WFTDA Champion Kansas City Roller Warriors 132-117, automatically qualifying for Championships. Duke City then lost to Bay Area in the semifinals and Rat City Rollergirls in the third place game to finish Westerns in fourth place. At Championships in Portland, Duke City lost their opening round game to Gotham Girls Roller Derby 182-25. At the 2009 Western Regional, Duke City lost the fifth place game to Bay Area 105-103 to finish in sixth place. As the eighth seed at the 2009 Western Playoff, Duke City lost their opening games to Tucson and Denver, before falling to Sacred City Derby Girls to finish in tenth place.
 Links: a. Tucson Roller Derby b. Denver Roller Derby c. WFTDA Western Regional Tournament d. Sacramento Roller Derby
Example Output: a

Example Input: Question: Once a member of the Birmingham Repertory Theatre, what was Derek Jacobi's first action role? Passage:While in the sixth form, he starred in a production of Hamlet, which was taken to the Edinburgh Festival Fringe and very well regarded. At 18 he won a scholarship to the University of Cambridge, where he read history at St John's College and earned his degree. Younger members of the university at the time included Ian McKellen (who had a crush on him—"a passion that was undeclared and unrequited", as McKellen relates it) and Trevor Nunn. During his studies at Cambridge, Jacobi played many parts including Hamlet, which was taken on a tour to Switzerland, where he met Richard Burton. As a result of his performance of Edward II at Cambridge, Jacobi was invited to become a member of the Birmingham Repertory Theatre immediately upon his graduation in 1960.
 Links: a. Trevor Nunn b. Birmingham Repertory Theatre c. Trevor Nunn d. Richard Burton
Example Output: b

Example Input: Question: Was the bands second album also released by EMI Records? Passage:In 1990 the band signed with EMI Records and released their debut album, Strings. Their initial experiments with synthesised sounds and rhythms were not immediately recognised, although Strings sold 20,000 copies during its first week after release. Two years later the band released their second album, 2, which included the critically acclaimed single "Sar Kiye Yeh Pahar". The song was first aired on MTV Asia, and led the band to widespread fame. After the release of 2, the quartet disbanded to focus on their studies and careers. In 2000 Maqsood and Kapadia released Duur, which revived the band's popularity, and followed it with Dhaani in 2003. This album included the single "Najane Kyun", which was part of the soundtrack for the Hollywood film Spider-Man 2. Following Junoon and Nusrat Fateh Ali Khan, Strings went to India (where they found remixes of one of their early songs playing in clubs). In 2008 Strings released their fifth album, Koi Aanay Wala Hai, with the singles "Yeh Hai Meri Kahani" and "Aakhri Alvida" (included on the soundtracks for Bollywood's Zinda and Shootout at Lokhandwala). The album was co-produced by Bollywood actor John Abraham, and was successful in Pakistan and India.
 Links: a. 2 (Strings album) b. EMI Records c. Dhaani d. Dhaani
Example Output:
a