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 was the CEO of the company that Leaton got a paid internship with in 2006? Passage:He won significant critical attention in 2006 when he was awarded the grand prize of the 2006 Film Your Issue competition, judged by President Barack Obama, George Clooney and the Dalai Lama, among others. Leaton presented his winning film Orphans in Africa and gave acceptance speeches, covered by the press, at three awards ceremonies: at the United Nations Headquarters where he was introduced by the President of USA Today, then again in Hollywood where he was introduced by the Mayor of Los Angeles, and finally during Sundance in Park City with Kevin Bacon and Mandy Moore. Leaton also received the 2006 grand prize Walt Disney Pictures paid internship. His mentors included some of the top executives, and he began getting hands-on experience on various Disney films. Years later when Lindsey Brookbank of the Collegiate Times asked him what his favorite memory was from his grand-prize internship, he replied "Having dinner with Roy Disney on board the Queen Mary." According to Brookbank, this internship gave Leaton the connections and experience that would help him land jobs in Hollywood after finishing college. He returned to Film Your Issue as a member of the jury the following year, and has also judged other student film contests.
Links: a. Kevin Bacon b. Walt Disney Pictures c. Barack Obama d. Walt Disney Pictures
Example Output: b

Example Input: Question: Which single from the album Hearsay was released last? Passage:On release, the album was received favourably by the majority of music critics. O'Neal's most commercially successful solo album, in the United States it went on to peak at number 29 on the Billboard 200 and number two on Top R&B/Hip-Hop Albums. The album was even more successful in the United Kingdom, peaking at number four and producing seven charting singles, including five top 40 hits. "Fake" peaked at number 33 on the UK Singles Chart; "Criticize" peaked at number four; "Never Knew Love Like This" at number 26; "The Lovers" at number 28; "(What Can I Say) To Make You Love Me" at number 27; "Sunshine" at number 72. Several remixes of the album's songs also charted: "Fake '88", (No. 16); "Hearsay '89", (No. 56). Two of the tracks, "Fake" and "Criticize", were also popular anthems in UK dance clubs. The album went on to be certified gold by the RIAA on October 20, 1987. In the UK, it sold more than 900,000 copies, being certified 3 Platinum by the BPI.
Links: a. UK Singles Chart b. Criticize (song) c. Never Knew Love Like This d. Fake (Alexander O'Neal song)
Example Output: d

Example Input: Question: What was the name of Wilfred's paternal great grandfather? Passage:Born on 25 June 1884 in South Kensington, England, the eldest child of Henry Neville Custance and Alice Georgina, nee Custance. His grandfather was Admiral Sir Reginald Custance. He joined the Royal Navy on 15 January 1899 as a cadet. He was rated midshipman on 15 May 1900 and served aboard HMS Ocean. Promoted to sub-lieutenant on 15 July 1903 he served aboard HMS Foam in the Mediterranean Station between 19041905. He served upon HMS Venerable in 1905 and promoted to lieutenant on 15 January 1905. He was the Gunnery Officer aboard HMS Vanguard between 19131917, and was having dinner aboard another ship at Scapa Flow in 1917 when HMS Vanguard suffered an internal explosion and sank with the loss of lives of 843 men. He served aboard HMS Vanguard during World War I and was present during the battle of Jutland in 1916.
Links: a. World War I b. South Kensington c. Scapa Flow d. Reginald Custance
Example Output:
d