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: What is the seating capacity of the place where the Saracens defended their title in April 2017? Passage:Deysel signed a two-year contract to join Japanese side Toyota Verblitz at the conclusion of the 2014 Super Rugby season. On 16 March 2017, it was announced that Deysel had joined Irish Pro12 side Munster on a three-month loan as injury cover for his compatriot Jean Kleyn. On 8 April 2017, Deysel made his debut for Munster when he started against Scottish side Glasgow Warriors in a 2016–17 Pro12 fixture. Munster won 10–7, with Deysel being replaced by Peter O'Mahony in the 42nd minute. On 22 April 2017, Deysel made his European debut when he replaced Tommy O'Donnell in Munster's 2016–17 semi-final defeat at the hands of defending champions Saracens in the Aviva Stadium, Dublin. On 27 May 2017, Deysel made his final appearance for Munster when he came off the bench against Scarlets in the 2017 Pro12 Grand Final. Following the completion of his loan spell at Munster, Deysel was granted an early release from his Sharks contract and signed a two-year deal with another Irish province, this time moving to Ulster. Ulster announced on 24 October 2018, Deysel would retire from professional rugby with immediate effect.
 Links: a. Aviva Stadium b. Aviva Stadium c. Dublin d. Ulster Rugby

Output: a


Input: Consider Input: Question: How often are new issues of the Canadian Journal of Neurological Sciences published? Passage:Multi-dose versions of the vaccine contain the preservative thiomersal (also known as thimerosal), a mercury compound that prevents contamination when the vial is used repeatedly. Single-dose versions and the live vaccine do not contain this preservative. In the U.S., one dose from a multi-dose vial contains approximately 25 micrograms of mercury, a bit less than a typical tuna fish sandwich. In Canada, different variants contain five and 50 micrograms of thimerosal per dose. The use of thiomersal has been controversial, with claims that it can cause autism and other developmental disorders. The U.S. Institute of Medicine examined these claims and concluded in 2004 that the evidence did not support any link between vaccines and autism. Other reviews came to similar conclusions, with a 2006 review in the Canadian Journal of Neurological Sciences stating that there is no convincing evidence to support the claim that thimerosal has a causal role in autism, and a 2009 review in the journal Clinical Infectious Diseases stating that claims that mercury can cause autism are "biologically implausible". The U.K. National Health Service stated in 2003 that "There is no evidence of long-term adverse effects due to the exposure levels of thiomersal in vaccines." The World Health Organization concluded that there is "no evidence of toxicity in infants, children or adults exposed to thiomersal in vaccines". Indeed, in 2008 a review noted that even though thiomersal was removed from all US childhood vaccines in 2001, this has not changed the number of autism diagnoses, which are still increasing.
 Links: a. Thiomersal and vaccines b. Autism c. Canadian Journal of Neurological Sciences d. National Academy of Medicine

Output: c


Input: Consider Input: Question: Which wrestler who headlined the Cyber Sunday feud in WWE was born first? Passage:The main feud heading into Cyber Sunday was between WWE Champion John Cena, World Heavyweight Champion King Booker, and ECW World Champion The Big Show, the top champion of each of the three brands. This feud began on the October 9 edition of Raw, where they came face to face, arguing about who was the most dominant champion in WWE. WWE Chairman Vince McMahon interrupted, and booked a triple threat "Champion of Champions" match at Cyber Sunday between the three of them. This also gave each show's General Manager an opportunity to choose opponents for each other's champion that night. This resulted in Big Show defeating Jeff Hardy and Booker defeating Rob Van Dam; however, the match between Cena and The Undertaker was interrupted by Booker, Big Show, and The Undertaker's storyline rival, Mr. Kennedy. At the same time, Cena began a minor feud with Kevin Federline. Federline, as the on-screen close friend of Johnny Nitro and Melina's, appeared on Raw to promote his album, "Playing With Fire". Cena rapped about Federline, but Nitro came out to Federline's defense and was thrown out of the ring by Cena. Cena was then interrupted by his two Cyber Sunday opponents, and McMahon who announced that a championship would be on the line at Cyber Sunday. Cena performed the FU on Federline, after being insulted. The feud between the champions continued on the October 20 edition of SmackDown!, when Big Show and Cena were at ringside during Booker's title defense against Batista. Batista speared Booker onto Big Show, who, in response, assaulted Batista, ending the match via disqualification. Cena then joined the brawl, and SmackDown! General Manager Theodore Long announced a tag team match for the next week. On the next Raw, Cena defeated Nitro after an FU, but was assaulted afterwards by his Cyber Sunday opponents, who turned on each other shortly after to start a brawl between the four to end the show. Batista and Cena were successful in the tag team match, after Big Show abandoned Booker. The next week, on Raw, a preview of Cyber Sunday's interactivity was displayed when fans voted for Cena's opponent for the night, between Big Show, Booker, and Jonathan Coachman. Coachman won in the voting, but was easily defeated by Cena.
 Links: a. WWE SmackDown b. Vince McMahon c. John Cena d. ECW World Heavyweight Championship


Output: c