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: Who owns the record company that released "Any Ol' Barstool"? Passage:"Any Ol' Barstool" is a song written by Deric Ruttan and Josh Thompson and recorded by American country music artist Jason Aldean. It was released in December 5, 2016 by Broken Bow Records as the third single from Aldean's seventh album They Don't Know (2016). "Any Ol' Barstool" gave Aldean his thirteenth number-one hit on the US Billboard Country Airplay chart and his eleventh top 5 hit on the Hot Country Songs chart. It also reached outside the top 50 on the Hot 100 chart. The song achieved similar chart success in Canada, reaching number one on the Canada Country chart and number 100 on the Canadian Hot 100 chart. It was certified Gold by Music Canada for selling over 40,000 units in that country. An accompanying music video for the single, directed by Shaun Silva, features Aldean playing in an empty bar against the story of a quarreling couple.
 Links: a. Billboard Hot 100 b. Deric Ruttan c. Jason Aldean d. BBR Music Group
Example Output: d

Example Input: Question: Is Prague the capital of a country? Passage:In the months following up to the September 11 attacks, officials at the Czech Interior Ministry asserted that Atta made a trip to Prague on April 8, 2001, to meet with an Iraqi intelligence agent named Ahmed Khalil Ibrahim Samir al-Ani. This piece of information was passed on to the FBI as "unevaluated raw intelligence". Intelligence officials have concluded that such a meeting did not occur. A Pakistani businessman named Mohammed Atta had come to Prague from Saudi Arabia on May 31, 2000, with this second Atta possibly contributing to confusion. The Egyptian Mohamed Atta arrived at the Florenc bus terminal in Prague, from Germany, on June 2, 2000. He left Prague the next day, flying on Czech Airlines to Newark, New Jersey, U.S. In the Czech Republic, some intelligence officials say the source of the purported meeting was an Arab informant who approached the Czech intelligence service with his sighting of Atta only after Atta's photograph had appeared in newspapers all over the world. United States and Czech intelligence officials have since concluded that the person seen with Ani was mistakenly identified as Atta, and the consensus of investigators has concluded that Atta never attended a meeting in Prague.
 Links: a. Prague b. Prague c. Germany d. Prague
Example Output: a

Example Input: Question: Why was there a division between the crown and nobility? Passage:Originally a legendary chronicle written in Anglo-Norman in the thirteenth century (identified by the fact that some existing copies finish in 1272), the Brut described the settling of England by Brutus of Troy, son of Aeneas, and the reign of the Welsh Cadwalader. In this, it was itself based on Geoffrey of Monmouth's text from the previous century. It also covered the reigns of many kings later the subject of legend, including King Cole, King Leir (the subject of Shakespeare's play, King Lear), and King Arthur, and exists in both abridged and long versions. Early versions describe the country as being divided, both culturally and politically, by the River Humber, with the southern half described as "this side of the Humber" and "the better part". Having been written at a time of division between crown and nobility, it was "baronial in its sympathies". It was probably originally composed "at least in part" by clerks in the Royal chancery, although not as an official history. It later became a source for monastic chronicles. Popular already in its early incarnations, it may even have limited the circulation of rival contemporary histories.
 Links: a. King Lear b. Coel Hen c. Magna Carta d. Brutus of Troy
Example Output:
c