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 did Hungary defeat to become Central European Champions in 1953? Passage:Budai made his debut for Hungary on 2 May 1949 in a 6-1 win against Austria in the Central European Championship. He subsequently played 39 times for Hungary and scored 10 goals. Four of these goals came in a 12-0 win against Albania on 24 September 1950. As one of the legendary Mighty Magyars, he helped Hungary become Olympic Champions in 1952 and Central European Champions in 1953. He also played in the Hungary side that defeated England 6-3 at Wembley Stadium. During the 1954 FIFA World Cup he played in the group stage in the 9-0 win against South Korea and in the semi-final against Uruguay. However, despite an excellent performance in the latter game, he was dropped for the final to make room for Ferenc Puskás. He also played two games at the 1958 World Cup.
 Links: a. Match of the Century (1953 England v Hungary football match) b. Match of the Century (1953 England v Hungary football match) c. Austria national football team d. Central European International Cup
Example Output: d

Example Input: Question: When was the team Tuqiri last played for founded? Passage:Lote Daulako Tuqiri (born 23 September 1979) is a Fijian-Australian former professional dual-code rugby footballer who last played for the South Sydney Rabbitohs in the NRL. He represented Australia in both rugby league and rugby union, and Fiji in rugby league. He usually played as a winger in both codes. Tuqiri first rose to prominence as a professional rugby league footballer for the Brisbane Broncos and Queensland Maroons, as well as the Fiji and Australia national sides. He was therefore a high-profile signing for rugby union in 2002, winning 67 caps for Australia and being a part of their 2003 and 2007 World Cup squads. He played rugby union for the Waratahs in the Super 14 and Leicester Tigers in England in season 2009–10. Tuqiri's contract with the Australian Rugby Union was terminated on 1 July 2009. No immediate reason was given, and Tuqiri returned to rugby league in 2010, playing for the Wests Tigers of the NRL. In September 2013, he signed a short-term contract with Irish rugby union giants, Leinster to play in the Pro12 in a three-month deal. Just 6 weeks out from the 2014 NRL season, Tuqiri signed with his third NRL club, the South Sydney Rabbitohs on a one-year deal.
 Links: a. Rugby league b. South Sydney Rabbitohs c. South Sydney Rabbitohs d. Wests Tigers
Example Output: b

Example Input: Question: What is the birthdate of the president who used the song during his speech at the 2012 Democratic National Convention? Passage:George W. Bush used "I Won't Back Down" at campaign events during the 2000 presidential campaign but was compelled to stop using the song after receiving a cease and desist letter from Petty's publisher. Petty then went on to perform the song at Al Gore's home after Gore conceded the election to President Bush. Jim Webb used the song for his successful bid for one of Virginia's U.S. Senate seats in 2006, as did Hillary Clinton during the 2008 Democratic presidential primary campaign. The song was also used at campaign events for Congressman Ron Paul of Texas during the 2008 Republican presidential primary campaign, as well as for events for his Campaign for Liberty. The song was also played at an event for Republican Connecticut gubernatorial nominee, Tom Foley. The song was also played at the 2012 Democratic National Convention after speech delivered by President Bill Clinton, in which President Barack Obama came out on stage to salute him.
 Links: a. 2012 Democratic National Convention b. Thomas C. Foley c. Bill Clinton d. Bill Clinton
Example Output:
c