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: What age bracket plays for the Real Madrid's youth system? Passage:Casillas began his career in Real Madrid's youth system, known as La Fabrica, during the 199091 season. On 27 November 1997, at age 16 and still a junior, he was first called up to the senior team squad to face Rosenborg in the UEFA Champions League, although he remained on the bench throughout. After spending a season with the C-team in the fourth tier, during which they won their regional group, he came into contention as the club's first-choice between the posts. In starting the 19992000 UEFA Champions League group stage fixture against Olympiakos on 15 September 1999, he became the youngest goalkeeper ever to feature in the competition at the time, aged 18 years and 177 days; a record which was only broken in October 2017 by Mile Svilar. Three days earlier, Casillas had made his La Liga debut in a 22 draw against Athletic Bilbao at San Mames Stadium. In May 2000, he became the youngest ever goalkeeper to play in and win a Champions League final when Real Madrid defeated Valencia 30, just four days after his 19th birthday.
Links: a. Olympiacos F.C. b. Real Madrid CF (youth) c. La Fabrica d. Real Madrid CF (youth)
Example Output: b

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 position did Huitema play when she won player of the year in 2017? Passage:Huitema made her first junior appearance for Canada with the national under-15 team on August 7, 2014 against Puerto Rico in a 50 victory at the CONCACAF Girls Under-15 Championship. The Canadians would go on to win the inaugural edition of the tournament in a penalty shoot-out, with Huitema scoring the winning shoot-out goal. She would go on to make 10 more appearances for the under-15 squad. Huitema's debut for the under-17 team came on March 3, 2016 at the CONCACAF Women's Under-17 Championship in a 30 win against Guatemala. Huitema played in the 2016 FIFA U-17 Women's World Cup. There, she scored her first goal in FIFA competition in a 32 win over Cameroon. She made 7 more appearances for the under-17 team. On July 6, 2017, Huitema made her first appearance for the under-20 team, scoring a goal in a 41 win over the United States. After scoring in a 31 loss to China in an under 17 match on July 12, 2017, Huitema became the first Canadian to score for the under 17, under 20 and senior national team in the same calendar year. In 2017, she was named the Canada U17 Female Player of the Year for her performances with the U-17, U-20 and senior teams throughout the year. On January 12, 2018, Huitema was named to Canada's squad for the 2018 CONCACAF Women's U-20 Championship in Trinidad & Tobago. In the first game of the tournament, Huitema scored twice in a 31 win over Costa Rica. In the second game, Huitema scored a hat-trick in a 41 win over hosts Trinidad & Tobago, which clinched Canada's progress into the semi-finals. She would play 66 minutes in a 40 victory over Haiti which resulted in Canada winning their group. In the semi-finals against Mexico, Huitema played the full game in a 11 draw. Canada would lose the match 43 on penalty kicks in which Huitema saw her attempt saved. Canada would require a win over Haiti in the third place match to qualify for the FIFA U-20 Women's World Cup in France later in the year. Canada would lose the match by a score of 10 and fail to qualify for the U-20 World Cup. Huitema was the tournament's top scorer with five goals and was named to the Best XI of the championship.
Links: a. Canadian U-17 Players of the Year b. 2014 CONCACAF Girls' U-15 Championship c. 2016 CONCACAF Women's U-17 Championship d. FIFA
Example Output:
a