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: 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

Ex Output:
a


Ex Input:
Question: Who was the number one pick of the 1991 NHL Draft? Passage:Holzinger was drafted in the sixth round, 124th overall, by the Buffalo Sabres in the 1991 NHL Entry Draft. He played High School Hockey at Padua Franciscan High School in Parma, Ohio and four years of college hockey at Bowling Green State University, and was the recipient of the Hobey Baker Award for top men's collegiate hockey player during his senior season. He made his National Hockey League debut with the Sabres during the 1994–95 season, appearing in four regular season games and four playoff games (scoring two goals during the Sabres' playoff series against the Philadelphia Flyers). After four and a half seasons with the Sabres, he was traded at the trade deadline of the 1999–2000 season (along with Cory Sarich and Wayne Primeau) to the Tampa Bay Lightning in exchange for Chris Gratton and a second-round draft pick.
 Links: a. Chris Gratton b. Buffalo Sabres c. 1991 NHL Entry Draft d. 1991 NHL Entry Draft

Ex Output:
c


Ex Input:
Question: How many people live in the city where Stevens grew up? Passage:Stevens grew up in Sydney and was an accountant and public servant before entering politics. He was elected to the New South Wales Legislative Assembly at the 1927 state election, as a member of the Nationalist Party. In 1929, he was appointed state treasurer under Thomas Bavin, serving until his party lost the 1930 election. In 1932, Stevens was elected as the inaugural leader of the state branch of the UAP. He became premier later that year, following the dismissal of Labor's Jack Lang, and subsequently led his party to victory at the 1932, 1935, and 1938 elections. Stevens was ousted in 1939 and replaced by Alexander Mair. He made an abortive attempt to enter federal politics at the 1940 election, and thereafter played little part in public life.
 Links: a. Sydney b. Sydney c. 1935 New South Wales state election d. 1940 Australian federal election

Ex Output:

a