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 old was the winner of the 18th season of Celebrity Big Brother when they won? Passage:The third series of the show began on 11 August 2015. The official list of cast members was released on 14 July 2015. This series was filmed in Cancun, Mexico, making this the first series to be filmed outside of Europe. They include four boys: Graham Griffiths, Jayden Robins, Kirk Norcross and Stephen Bear, and four girls: Amy Paige Cooke, Laura Alicia Summers, Megan McKenna and Megan Rees. With the announcement of the line-up it was confirmed that former Geordie Shore cast member and star of the first series, Vicky Pattison, would be making her return as an ex alongside Series 2 star Rogan O'Connor. The Only Way Is Essex cast member Kirk Norcross was also confirmed to be taking part in the series, with his ex-fiancée and Celebrity Big Brother star Cami-Li featuring as his ex. Star of Magaluf Weekender Jordan Davies was also revealed to be taking part in the series, also featuring as an ex. Megan McKenna and Jordan later returned for the fourth series. On 5 January 2016, cast member Megan McKenna entered the Celebrity Big Brother house to compete in the seveneeth series, and on 28 July 2016, Stephen Bear entered the house to compete in the eighteenth series where he left as the winner. Jordan Davies made another return to the show, this time during the fifth series with Jemma and Bear, and Holly also returning as an ex again. In August 2017, both Jemma Lucy and Jordan Davies took part in the twentieth series of Celebrity Big Brother.
 Links: a. Stephen Bear b. Stephen Bear c. The Only Way Is Essex d. Ibiza Weekender
Example Output: a

Example Input: Question: How many students were attending New York University the year Beale was born? Passage:Beale was born in 1948 in St. Louis County, Minnesota to C. Gordon Beale, a minister of the United Church of Christ, and Marcella Beale, a nurse. He served in the United States Army as a medic in the early 1970s and was honorably discharged. Beale attended the University of California, Riverside, earning a bachelor's degree in political science in 1975, using resources provided by the G.I. Bill. Beale interned for Democrat US Senator John V. Tunney while in college, assisting in the negotiation of the Bilingual Courts Act. He later simultaneously earned a Master of Public Administration from Princeton University and a law degree from New York University. Beale was employed with a law firm consisting of three partners in Lake City, Minnesota for four years prior to his work with the EPA. During his time with this law firm, he primarily dealt with the Federal Election Commission and the Securities and Exchange Commission.
 Links: a. G.I. Bill b. New York University c. Federal Election Commission d. Lake City, Minnesota
Example Output: b

Example Input: Question: What is the best selling album ever produced by the man who Ingram teamed up with on the song "The Secret Garden"? Passage:In the 1990s, Ingram's highest-profile team-up came again with Quincy Jones, on the song "The Secret Garden". This song also featured vocals by Barry White, El DeBarge, and Al B. Sure!. Soundtrack songs were popular for Ingram in the 1990s. From the movie Sarafina! came "One More Time", and from City Slickers came "Where Did My Heart Go?" In 1991, he and Melissa Manchester performed the song "The Brightest Star" in the animated Christmas film Precious Moments Timmy's Gift. In 1993, they performed the song again in the film's sequel Precious Moments Timmy's Special Delivery. Ingram's 1994 composition "The Day I Fall in Love", a duet with Dolly Parton, was the theme song for the movie Beethoven's 2nd and was nominated for an Academy Award for Best Original Song. Ingram and Parton performed the song live on the Oscar broadcast. In 1997, he and Carnie Wilson co-wrote the song "Our Time Has Come" and lent it to the animated film Cats Don't Dance.
 Links: a. Quincy Jones b. Al B. Sure! c. The Secret Garden (Sweet Seduction Suite) d. Academy Awards
Example Output:
a