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: How old was Ibrahim Pasha the year the conquest of the Sudan began? Passage:The reign of Farouk was characterized by ever increasing nationalist discontent over the British occupation, royal corruption and incompetence, and the disastrous 1948 Arab–Israeli War. All these factors served to terminally undermine Farouk's position and paved the way for the revolution of 1952. Farouk was forced to abdicate in favor of his infant son Ahmed-Fuad who became King Fuad II, while administration of the country passed to the Free Officers Movement under Muhammad Naguib and Gamal Abdel Nasser. The infant king's reign lasted less than a year and on June 18, 1953, the revolutionaries abolished the monarchy and declared Egypt a republic, ending a century and a half of the Muhammad Ali Dynasty's rule. Emerging victorious from a war-triangle (Ottomans, Mamluks, and his loyal troops), Mehmed Ali made good use of Albanian irregulars services as mercenaries and troops to bolster his reign. Albanian mercenaries, or Arnauts, presented the backbone of Ali's army and were known as elite and undisciplined soldiers of the Ottoman Empire armies. With the rise of Muhammad Ali in power, many of them would settle in Egypt and serve there. By 1815, the number of Albanian military was over 7000. Albanian troops partook in the war against the Wahhabi movement in Arabia (1811–18) and in the conquest of the Sudan (1820–24). The number of Albanian troops would diminish in 1823, when Ibrahim Pasha, Ali's son, would join the Ottoman armies in the Greek War of Independence along with circa 17,000 men, many of them Albanians. Ali's dynasty would continue to rule Egypt until 1952.
 Links: a. Free Officers Movement (Egypt) b. Egyptian revolution of 1952 c. Ibrahim Pasha of Egypt d. Free Officers Movement (Egypt)

Ex Output:
c


Ex 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

Ex Output:
d


Ex Input:
Question: Who was the coach of the NCAA Niagara Purple Eagles women's ice hockey team when Ashley Riggs began playing for them? Passage:Amongst their numerous team alumni, Ashley Riggs graduated to the NCAA Niagara Purple Eagles women's ice hockey team in 2004, before jumping to the National Women's Hockey League and later the Canadian Women's Hockey League. As a member of the Under-22 Canada national women's ice hockey team Riggs competed in four Air Canada Cups, winning Gold in three of them. Natalie Spooner graduated to the NCAA Ohio State Buckeyes women's ice hockey team in 2008. She has competed in multiple IIHF events as a member of the Women's National Team and plays in the CWHL as a member of the Toronto Furies. In 2008, Jenn Wakefield graduated to the NCAA New Hampshire Wildcats program. After two seasons she switched to the Boston University Terriers women's ice hockey team. Wakefield is a National Team member and has played in the CWHL with the Vaughan Flames and now with the Toronto Furies. Tara Watchorn also graduated to NCAA in 2008 with the Boston University Terriers women's ice hockey team. She made her debut with the Canadian National Team in 2010 and plays for the Calgary Inferno of the CWHL.
 Links: a. Natalie Spooner b. Toronto Furies c. Ohio State Buckeyes women's ice hockey d. Niagara Purple Eagles women's ice hockey

Ex Output:

d