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.

Input: Consider Input: Question: Who was the head of the Gambia when Cham Joof was born? Passage:Cham Joof was born on 22 October 1924 at 7 Griffith Street (Half-Die) in Bathurst now Banjul, the capital of the Gambia. He came from a Serer and Wolof background. He was the third child and the eldest son of Ebrima Joof (18871949) and Aji Anna Samba (1896 9 April 1977). On his father's side (the Joof family), he was a descendant of the Joof Dynasty of Sine and Saloum, and the Njie Dynasty of Jolof. On his mother's side, he was the great grand-nephew of Tafsir Sa Lolly Jabou Samba a 19th-century Senegambian jihadist, military strategists and advisor to Maba Diakhou Ba and one of the commanders of his army. Cham Joof was the elder brother of Gambian barrister Alhaji Bai Modi Joof.
Links: a. The Gambia b. Joof family c. Njie d. Saloum

Output: a

Input: Consider Input: Question: Who won the World Cup where the Costa Rican team had a prominent performance? Passage:Since the late 1980s, the team has continuously been visible as a solidly competitive side, with a prominent performance in the 1990 FIFA World Cup in Italy, making it to the knockout stage in their debut after finishing second in their group during the first phase, below Brazil. They also managed to qualify for the 2002 and 2006 FIFA World Cups. In 2014, Costa Rica made their best performance in history by finishing first in their group that consisted of three former World Cup champions: Uruguay, Italy, and England. During the Round of 16 they defeated Greece 53 via a penalty shootout after a 11 draw. Moreover, during the match against a much better team, Navas saved more than 15 shots due to the Costa Rican very weak defense. The match was characterized as "Navas vs Greece". They reached the quarterfinals for the very first time as the Ticos were defeated by the Netherlands also in a penalty shootout (34) after a scoreless draw on 5 July. Their 2018 World Cup campaign ended in a 4th place group stage exit with their only point coming from a 2-2 draw vs Switzerland.
Links: a. 2006 FIFA World Cup b. 1990 FIFA World Cup c. 2006 FIFA World Cup d. Keylor Navas

Output: b

Input: Consider Input: Question: How many subscribers does the newspaper have that implied playing in Canada would be a mistake for the strikers? Passage:The club was in the process of a "lengthy search" for a "marquee-designated player". MLSE President Tim Leiweke, Club General Manager Tim Bezbatchenko, and Head Coach Ryan Nelsen traveled to Europe in October 2013 to search for such a player. Leiweke was quoted, stating, that "the days of us putting our toe in the water and trying to find a cheap DP (designated player) are over. We're going to go swing for the fences." The club wanted to sign two strikers in the January transfer window and were at the "top of the list." The attention was on clubs in the Premier League and Serie A. Jermain Defoe, Alberto Gilardino Samuel Eto'o and Fabio Quagliarella were rumoured to join Toronto FC. The club denied the report about signing Defoe, but Bezbatchenko stated that "it's obvious the public "knows" who the targets are." Bezbatchenko also stated that "We've identified 35 (potential Designated Players) that would fit the role" and that "We're really on two." Another name in the media was Gilberto. Toronto FC was in competition with clubs in La Liga, Liga MX, Serie A, and Bundesliga for Gilberto's signature. Gilberto was in Toronto and was at the Toronto Raptors game on December 10. Gilberto signed for the club on December 14. Michael Bradley and Defoe joined Gilberto as designated players. Defoe joined Toronto on February 28. Defoe was part of a marketing campaign with the club. The club put together a television advertisement stating that it's a "bloody big deal" that Defoe is coming to Toronto FC. The ad was also online and had close to 60,000 views in a day. The ads were running on The Sports Network and Sportsnet with Toronto being the main focus of the marketing campaign. Even though MLSE was using Defoe in their marketing campaigns, British newspaper The Guardian stated "The money may be good but the club are woeful and playing in Canada may end the striker's World Cup hopes."
Links: a. The Guardian b. Premier League c. Premier League d. Alberto Gilardino
Output: a