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: How many years after the Beach Boys released "Don't Worry Baby" did Roger Christian pass away? Passage:During a vocal tracking session in which Manson was singing over music already written for "Push It", the band felt that one of the lines in "Push It" would benefit from having a vocal chorus answering the words back to her. Inspired by Manson's spontaneous ad-lib of the phrase "don't worry baby" over the music, guitarist Steve Marker sampled the Beach Boys song "Don't Worry Baby" and used it as a backing vocal. The sample didn't work with what the band had already recorded so Manson re-sang the lines to fit the key and tempo of the song. Aware of the potential for incurring copyright legalities, the band debated whether or not to keep the line. Garbage and Brian Wilson coincidentally shared the same publishing company (Irving Music), and figuring that they had nothing to lose, contacted him through their company representative, sent him a copy of "Push It", and asked him for permission to use the interpolation. Wilson gave his blessing, and reportedly kept the tape. Both Wilson and Roger Christian, the deceased co-writer of "Don't Worry Baby", received a writing credit. A simpler interpolation credit was given to Herbie Azor, as the band's lawyers felt that there was a possible similarity of the line "Push it!" to his own "Push It", which had been a hit single for New York hip hop trio Salt-N-Pepa.
 Links: a. Music publisher (popular music) b. The Beach Boys c. Music publisher (popular music) d. Don't Worry Baby
Example Output: d

Example Input: Question: Who plays Spiderman in the movie that Topher Grace appeared in in 2007? Passage:Eric is a well-known fan of science fiction, such as  and especially Star Wars, in which he compares himself to Luke Skywalker. He is also known to have a large, beloved collection of G.I. Joe. He listens to artists such as Led Zeppelin, KISS, Aerosmith, Pink Floyd, Lynyrd Skynyrd, Deep Purple, Queen, Styx and Rush. He is also a Beatles fan and has been known to liken his group of friends to them, accusing Jackie of "breaking up the band" with her romantic entanglements with Kelso and Hyde (calling her Yoko, in reference to Yoko Ono). It is also hinted that he is both a Batman and Spider-Man fan, having Spider-Man bed sheets and a considerable number of comic books, most of them bearing the Marvel Comics logo with the titular character on the covers. When he fights a fan at the Packers game, he tells Red that he learned his moves from Spider-Man; coincidentally, Topher Grace starred as Eddie Brock, a character who obtains powers very similar to Spider-Man, thus transforming him into the monstrous Venom in Spider-Man 3 in 2007.
 Links: a. The Beatles b. Styx (band) c. Spider-Man 3 d. Styx (band)
Example Output: c

Example Input: Question: Did Northern Illinois beat a team from Kentucky to be crowned MAC Champions? Passage:The 2014 Northern Illinois Huskies football team represented Northern Illinois University in the 2014 NCAA Division I FBS football season. The Huskies competed in the West Division of the Mid-American Conference. They were led by second-year head coach Rod Carey. They played their home games at Huskie Stadium. The Huskies' regular season loss to Central Michigan snapped a 26-game home winning streak dating back to the 2009 season. They finished the season 11–3, 7–1 in MAC play to win a share of the MAC West Division Title with Toledo. Due to their head-to-head win over Toledo, the Huskies represented the West Division in the MAC Championship Game where they defeated Bowling Green to be crowned MAC Champions. They were invited to the Boca Raton Bowl where they lost to Conference USA Champion Marshall.
 Links: a. 2014 Mid-American Conference football season b. Rod Carey c. 2014 Bowling Green Falcons football team d. 2014 Central Michigan Chippewas football team
Example Output:
c