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: Of the two colonies captured by Philip, which one was established first? Passage:Athens and Macedon had been at war since 356 BC, after Philip's capture of the Athenian colonies of Pydna and Potidea. Shortly afterwards, the Third Sacred War began after the Phocian seizure of the Temple of Apollo in Delphi. Athens allied herself with Phocis, against the other members of the Amphictyonic League. In 354 or 353 BCE, the Thessalians, having been defeated by the Phocians, requested that Philip become archon of Thessaly, to which Philip assented, drawing Macedon into the Sacred War. In 352 BC, Philip's erstwhile ally, the Chalkidian League (led by Olynthos), alarmed by Philip's growing power, sought to ally themselves with Athens, in clear breach of their alliance with Philip. In response, Philip attacked Chalkidiki in 349 BC, and by 348 BC, had completely destroyed the Chalkidian League, razing Olynthos in the process.
 Links: a. Phocis (ancient region) b. Chalcidian League c. Expansion of Macedonia under Philip II d. Pydna
Example Output: d

Example Input: Question: In what current day city would the Church of the Holy Apostles be located in? Passage:The facts regarding Constantine's life are confused and subject to conjecture. It is known that at the time of Emperor Leo VI the Wise (r. 886–912), he restored a monastery near the Church of the Holy Apostles, which is nowadays identified with the Fenari Isa Mosque on account of a partial inscription commemorating its dedication to the Theotokos. The date of the inauguration is traditionally placed in 907/908. Constantine Lips also participated in the failed coup of the prominent general Constantine Doukas against the infant Constantine VII Porphyrogennetos (r. 913–959) in July 913, after the death of Leo's brother and successor Alexander (r. 912–913). In its wake, several nobles who had been or were suspected of being involved in the coup were executed, while others fled the city, amongst them Constantine Lips. On August 20, 917, he fell at the Battle of Acheloos, fighting against the Bulgarian forces under Simeon I.
 Links: a. Church of the Holy Apostles b. Theotokos c. Constantine Doukas (usurper) d. Inauguration
Example Output: a

Example Input: Question: Which of the three singles Tamia was nominated for Grammys for in the 40th Annual Grammy Awards had the most sales? Passage:In 1994, Tamia signed her first recording deal with Warner Bros. Records and collaborated with veteran producer Quincy Jones on his album Q's Jook Joint (1995). Their output, the singles "You Put a Move on My Heart" and "Slow Jams", as well as "Missing You", a song Tamia recorded with Brandy, Gladys Knight, and Chaka Khan for the soundtrack of the 1996 motion picture Set It Off, each earned her nominations at the 40th Annual Grammy Awards. She later co-signed with Jones's Qwest Records label, a joint venture with Warner Bros., on which her self-titled debut album was released in 1998. Upon its release, Tamia received a mixed to positive reception by critics and garnered the singer two Juno Award nominations for Best New Solo Artist and R&B/Soul Recording of the Year at the 1999 award ceremony. In addition, it peaked at number sixty-seven on the Billboard 200 chart, selling 416,000 copies in the United States, and was eventually certified gold in Japan for 100,000 copies shipped to stores.
 Links: a. Tamia (album) b. Warner Records c. You Put a Move on My Heart d. Billboard 200
Example Output:
c