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: Which of the two companies that posted previews  of Somebody to Love was founded first? Passage:A preview of the video was posted on AOL's PopEater.com, and subsequently on Bieber's VEVO channel, including behind the scenes clips of Bieber with the dancers, and highlights of the video with Usher and in front of a green screen. Bieber said, "It's really awesome to be able to work with professional dancers, you know, people that were in, like, ABDC, and also got an approval from choreographer Jamaica, who said Bieber was "killing it" and that she didn't have to give him any corrections. It made its premiere during the June 17, 2010 results show of the seventh season of So You Think You Can Dance, and was introduced by Usher after his performance of "OMG". It later premiered that night on VEVO and on June 18, 2010 on 20/20at the end of their show. The video features dance crews including, America's Best Dance Crew season 5 winners Poreotics, and Season 3's runner up Beat Freaks, as well as The Syrenz, LXD, Medea Sirkas, solo acts Simrin Player and Bboy Fly, and other dancers and crews. Singer/actress and model Katerina Graham makes a cameo in a scene with Poreotics. Bieber's best friend Ryan Butler, who appeared in the "One Time" video, also appears alongside Bieber, wearing a T-shirt advertising his Twitter account. According to Tamar Antai of MTV News the video "makes vague allusions" to clips for Busta Rhymes' "Pass the Courvoisier, Part II" and Chris Brown's "Wall to Wall". A backpack choreography scene with LXD recalls Usher's 1997 video for "You Make Me Wanna".
 Links: a. AOL b. 20/20 (American TV program) c. MTV News d. One Time (Justin Bieber song)
Example Output: a

Example Input: Question: Which professional ice hockey league that McNab ever played in was formed first? Passage:After playing junior hockey in Saskatoon, Saskatchewan, McNab played on the Omaha Knights of the USHL in the 1946–48 season before being called up to the Detroit Red Wings of the National Hockey League in 1947. He would play on and off with the Red Wings until 1951, playing on the team that won the Stanley Cup in 1950. He played for the Indianapolis Capitols of the American Hockey League in 1950–51. Before the 1951–52 season, he was traded by the Red Wings to the Chicago Black Hawks, but never played for the team. Back surgery kept him out of action in 1951–52 and McNab then joined the New Westminster Royals of the Western Hockey League, where he played for seven seasons, retiring in 1959. He was voted league MVP in 1955, scoring 32 goals and 81 points.
 Links: a. Omaha Knights (AHA) b. Saskatoon c. National Hockey League d. United States Hockey League (1945–1951)
Example Output: d

Example Input: Question: Which of the actors that starred in the movie featuring Jacobs' first solo score is the oldest? Passage:In 2006, Jacobs started his film scoring work, copying parts on Happy Feet. This was then followed by work as an orchestrator on Jumper, Gabriel, Australia, and P.S. I Love You. In 2008, Bryce moved to the United States, where he started working at Hans Zimmer’s company Remote Control Productions. Once there, he made a name for himself with scores that focused on achieving an orchestral approach to texturalizing with guitars, most notably on the score for Rush. He also worked with composer Ramin Djawadi on numerous projects, including Clash of the Titans, Medal of Honor, Flash Forward, Prison Break, and Breakout Kings. Jacobs' first solo score was for the film Bad Karma (2012), starring Ray Liotta and Dominic Purcell, and he later collaborated with Scottish singer-songwriter, KT Tunstall, on the indie film Carried (2015). In 2017, Jacobs created the soundtrack for the Syfy adaptation of 12 Monkeys, and then for the comedy Random Tropical Paradise. In 2018, Bryce composed the score for Icon Pictures’ Yowie series and, most recently, he composed music for Walt Disney Pictures’ Christopher Robin, which also featured his guitar and vocal performances.
 Links: a. Australia (2008 film) b. Dominic Purcell c. Dominic Purcell d. Hans Zimmer
Example Output:
b