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: Which national team that pull out of the Pacific Nations Cup has a longer history? Passage:The 2009 Pacific Nations Cup is a rugby union tournament held between five national sides on the Pacific Rim: Fiji, Japan, Samoa, Tonga and the Junior All Blacks. The New Zealand Māori team that won the tournament last year will no longer take part in this competition because of a decision taken by the New Zealand Rugby Union. Australia A has also decided to pull out due to a similar decision. The inaugural competition was held in 2006. This year the tournament will begin on June 12 and ends on July 3, 2009 and most of the matches will be hosted by Fiji. The awarding of the key international tournament to the Fiji Rugby Union represents a further boost to the continued development of rugby in the region. The two opening round matches will be played outside of Fiji with Samoa hosting the Junior All Blacks in Apia and Tonga entertaining the Fijians in Nukuʻalofa the following day before the tournament moves to Fiji for a 17-day festival of international rugby spread across three match venues: the ANZ National Stadium (Suva), Churchill Park (Lautoka) and Lawaqa Park (Sigatoka).
 Links: a. Australia A national rugby union team b. Māori All Blacks c. Australia A national rugby union team d. Australia A national rugby union team
Example Output: b

Example Input: Question: How old was Yoshinaka when Enichi-ji's general was killed? Passage:Enichi-ji was opened in 807 by the Hossō sect scholar-monk Tokuitsu, who had come from Nara to spread the faith in the Aizu region. He overcame the followers of the Tendai and Shingon sects to become preeminent in Aizu, and by the time of his death in 842, the temples was a complete Shichidō garan with 300 monks in residence, several thousand sōhei and more than 3500 sub-temples. By the late Heian period, the temple had extended its holdings into eastern Echigo province and had established close ties with the Taira clan. During the Genpei War, the temple sent troops in support of the Heike in Shinano Province against Kiso Yoshinaka. However, the temple's leading general, Jōtan-bō, was killed at the 1181 Battle of Yokotagawa by Yoshinaka's forces, and the temple's forces withdrew and the temple went into decline.
 Links: a. Heian period b. Shinano Province c. East Asian Yogācāra d. Minamoto no Yoshinaka
Example Output: d

Example Input: Question: How many people are on the council that the AEAC invited to attend a free lunch? Passage:The Adult Entertainment Association of Canada (abbreviated AEAC, also called the Adult Association of Canada) is a coalition of strip club owners and their agents that represents 53 of the 140 strip clubs in Ontario, Canada. Tim Lambrinos is the organization's director. The Exotic Dancers' Alliance (EDA), a collective that was founded in 1995 to bring together both former and current strippers and their supporters, sought to establish minimum employment standards for strippers in Ontario by contending with the AEAC, but the EDA ceased to exist in 2004. Also in 2004, Ottawa instituted a law against lap dancing, and the AEAC unsuccessfully attempted to have the law overturned in 2007. Starting in 2004, the AEAC and the Department of Citizenship and Immigration Canada became embroiled in a long-standing controversy about work permits for foreign workers to be hired for the purpose of striptease. In 2008, when Minister of Citizenship and Immigration Diane Finley allegedly received threats from sex industry officials in relation to her support of Bill C-17, which sought to allow immigration officers to deny temporary visas to prospective strippers if they were suspected to be sex trafficking victims, Lambrinos said that "it's not plausible" that any of the AEAC strip clubs were responsible for the threats. In 2009, the AEAC invited Toronto City Council members to attend a free lunch at a strip club in the city, and three councillors accepted the invitation. The AEAC released a statement in 2010 that the government's crackdown on sex industry worker visas had resulted in a stripper shortage, and Minister of Public Safety Vic Toews responded by saying that the strip clubs that were short on strippers because of the crackdown were engaging in human trafficking. Toews then ordered the Royal Canadian Mounted Police to investigate the relevant strip clubs in order to determine whether or not the strippers working there were illegal immigrants or sex trafficking victims, and the AEAC launched a campaign to deny these allegations.
 Links: a. Striptease b. Stripper c. Toronto City Council d. Strip club
Example Output:
c