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: What country are these cities part of? Passage:Following its involvement in The Troop, FujiFilm commissioned Glory Film Co. to make a series of films to demonstrate its new motion picture filmstocks. For these projects Glory employed leading cinematographers: Oscar-winners Jack Cardiff OBE, BSC, ASC, (The African Queen) and Ronnie Taylor BSC (Gandhi) together with Phedon Papamichael ASC (Walk the Line), John de Borman BSC (The Full Monty), Sue Gibson BSC (Spooks), Thierry Arbogast AFC (The Fifth Element), Ron Stanett CSC (Evel Knievel) and Tony Pierce-Roberts BSC (A Room With a View). The films were shot at Pinewood (LightsII) and Shepperton studios (Lights II, Return of The Shadow), with locations including Hastings in East Sussex (The Glow). 'Lights II' (2005) featured the last cinema performance of John Mills (at age 96). He played a tramp and was photographed by cinematographer Jack Cardiff, himself 90 years old.
Links: a. Phedon Papamichael b. Hastings c. Jack Cardiff d. Jack Cardiff
Example Output: b

Example Input: Question: How long had the Senator held his position before he helped Thurmond to try to get Schweiker off the ticket? Passage:In the 1976 Republican primary, President Ford faced a challenge from former California Governor Ronald Reagan, who selected Richard Schweiker as his running mate. Though Thurmond backed Reagan's candidacy, he, along with North Carolina Senator Jesse Helms, led efforts to oust Schweiker from the ticket. During the subsequent general election, Thurmond appeared in a campaign commercial for incumbent U.S. President Gerald Ford in his race against Thurmond's fellow Southerner, former Georgia Governor Jimmy Carter. In the commercial, Thurmond said Ford (who was born in Nebraska and spent most of his life in Michigan) "sound[ed] more like a Southerner than Jimmy Carter". After President-elect Carter nominated Theodore C. Sorensen as his choice to become Director of the Central Intelligence Agency, Thurmond expressed reservations and fellow Senator Jake Garn said he believed Thurmond would not vote for the nomination. Sorensen withdrew from consideration days later, before a vote could be had.
Links: a. Jimmy Carter b. Director of the Central Intelligence Agency c. Jimmy Carter d. Jesse Helms
Example Output: d

Example Input: Question: Was the woman featured as a backup vocalist on "Foosteps" born in the same country as Lawrence? Passage:"Footsteps" is a hit single by American singer and actor Steve Lawrence, recorded in January 1960 and released in the spring of 1960 through ABC-Paramount Records in the US and via the HMV label in the UK. The song was written by Barry Mann and Hank Hunter. Lawrence's single features Lawrence's wife, Eydie Gorme, as a backing vocalist and Don Costa's Orchestra and chorus. It spent 13 weeks on the Billboard Hot 100, peaking at No. 7 on April 4, 1960, while reaching No. 4 the UK's Record Retailer chart, No. 3 Canada's CHUM Hit Parade, and No. 9 on Norway's VG-lista.
Links: a. Billboard Hot 100 b. VG-lista c. Steve Lawrence d. Steve Lawrence
Example Output:
c