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 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 199495 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 19992000 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
Example Output: c

Example Input: Question: In what city is the university at which Ginjaar served as Chairman of the Education Board? Passage:After the election of 1977 Ginjaar was appointed as Minister of Health and Environment in the Cabinet Van Agt-Wiegel, taking office on 19 December 1977. Ginjaar served as acting Minister for Science Policy from 1 April 1979 until 3 May 1979 following the death of Rinus Peijnenburg. In December 1980 Ginjaar announced that he wouldn't stand for the election of 1981 but wanted to run for the Senate. Ginjaar was elected as a Member of the Senate after the Senate election of 1981, taking office on 25 August 1981 serving as a frontbencher chairing the and the and spokesperson for the Environment, Higher Education and Agriculture. The Cabinet Van AgtWiegel was replaced by the Cabinet Van Agt II following the cabinet formation of 1981 on 11 September 1981. Ginjaar also served as Chairmen of the People's Party for Freedom and Democracy from 29 November 1986 until 4 October 1991. Ginjaar served as a distinguished professor of Medical ethics at the Utrecht University from 1 September 1982 until 1 January 1986 and also served as Chairman of the Education board of the Utrecht University from 10 September 1982 until 1 January 1986 and a distinguished professor of Climatology and Medical research at the State University of Limburg from 1 March 1990 until 1 September 1994. Ginjaar was selected as Parliamentary leader of the People's Party for Freedom and Democracy in the Senate following the election of Frits Korthals Altes as President of the Senate, serving from 11 March 1997 until 14 September 1999. In November 2002 Ginjaar announced his retirement from national politics and that he wouldn't stand for the Senate election of 2003 and continued to serve until the end of the parliamentary term on 10 June 2003.
Links: a. Medical research b. Utrecht University c. Utrecht University d. Ministry of Agriculture, Nature and Food Quality
Example Output: b

Example Input: Question: What was the population of Beaufort, North Carolina the year that Michael J. Smith was born? Passage:Smith was born April 30, 1945, in Beaufort, North Carolina. He graduated from East Carteret High School in 1963, and went on to receive a Bachelor of Science degree in Naval Science from the United States Naval Academy in 1967. He subsequently attended the U.S. Naval Postgraduate School at Monterey, California, from which he graduated with a Master of Science degree in Aeronautical Engineering in 1968. He completed naval aviation jet training at Naval Air Station Kingsville, Texas, receiving his aviator wings in May 1969. He was then assigned to the Advanced Jet Training Command (VT-21) where he served as an instructor from May 1969 to March 1971. During the 2-year period that followed, he flew A-6 Intruders and completed a tour in 1972 during the Vietnam War while assigned to Attack Squadron 52 (VA-52) aboard the aircraft carrier . During his deployment with VA-52, Smith took part in Operation Linebacker, the first continuous bombing effort conducted against North Vietnam since 1968.
Links: a. Beaufort, North Carolina b. VA-52 (U.S. Navy) c. Grumman A-6 Intruder d. Texas
Example Output:
a