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: Is the Philippine Sea part of the Pacific Ocean? Passage:Nueva Camarines is the name of a proposed new province of the Philippines to be created out of Camarines Sur in the Bicol Region of the island of Luzon. The proposed province would border Camarines Sur to the west, the Philippine Sea to the north, Albay to the south, and to the east the island province of Catanduanes across Maqueda Channel. Its capital is expected to be Tigaon if the bill is passed. House Bill 4820 which would create the province passed the House of Representatives of the Philippines with 229 votes in favor to one against in 2011 and is now under consideration by the Senate of the Philippines. However, at the end of 15th Congress, it failed to pass to the Senate. In the 16th Congress under then Representative Felix William Fuentebella, a bill is yet to be filed to repropose the creation of the province, due to lack of support from fellow Camarines Sur Representatives Maria Leonor Robredo and Salvio Fortuno. In the 18th congress under new Representative Arnulf Bryan Fuentebella.
Links: a. Philippine Sea b. 15th Congress of the Philippines c. 15th Congress of the Philippines d. Philippine Sea
Example Output: a

Example Input: Question: What year did Cash record "Big Iron"? Passage:Robbins has been honored by many bands, including the Grateful Dead who covered "El Paso" and Bob Weir & Kingfish who covered "Big Iron". The Who's 2006 album Endless Wire includes the song "God Speaks of Marty Robbins". The song's composer, Pete Townshend, explained that the song is about God deciding to create the universe just so he can hear some music, "and most of all, one of his best creations, Marty Robbins." The Beasts of Bourbon released a song called "The Day Marty Robbins Died" on their 1984 debut album The Axeman's Jazz. Both Frankie Laine and Elvis Presley, among others, recorded versions of Robbins' song "You Gave Me a Mountain", with Laine's recording reaching the pop and adult contemporary charts in 1969. Though Elvis never recorded any of Robbins' songs in the studio, he was a big fan and recorded "You Gave Me a Mountain" live in concert several times; it appeared on 15 Presley albums. Johnny Cash recorded a version of "Big Iron" as part of his American Recordings series, which is included in the Cash Unearthed box set. Cash also recorded other songs by Robbins, including "I Couldn't Keep From Crying", "Kate" and "Song Of The Patriot". He held Robbins in high esteem, having him guest several times on his network TV show. "Big Iron" was also covered by Mike Ness on his album Under the Influences, on which he paid homage to country music artists. The song, originally released on Robbins' 1959 album Gunfighter Ballads and Trail Songs, gained renewed popularity following its use in the video game .
Links: a. Johnny Cash b. Under the Influences c. Beasts of Bourbon d. Gunfighter Ballads and Trail Songs
Example Output: a

Example Input: Question: When was the college founded that Claire Porter got her BA in mathematics from? Passage:Claire Porter was born in New Britain, Connecticut, where, as a child, she was a star athlete and danced in a local studio. After she earned her BA in Mathematics from the College of New Rochelle in New York, she became a computer programmer for G.E. Analytical Engineering in Schenectady, New York. Porter returned to her dancing roots after witnessing a performance by Maria Tallchief. She then attended Sonoma State University in California from 1969-1973. At Sonoma State, she studied dance, taught Family Dance, Exercise, and Children's Dance, and directed a dance company of 12 members. Porter eventually moved from California to Ohio to study dance at Ohio State University. It was there that Porter discovered Laban Movement Analysis and began exploring gestures, acting, writing, and voice. She later received her certification for Laban Movement Analysis at the Laban/Bartenieff Institute of Movement Studies NYC. She earned her MA in Dance from Ohio State and has continued the exploration of gestural movement as a teacher, choreographer and performer.
Links: a. Teacher b. Sonoma State University c. College of New Rochelle d. Ohio
Example Output:
c