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.

Ex Input:
Question: In what country does Amunugama currently reside? Passage:He studied at the Trinity College, Kandy and graduated from the University of Ceylon. He joined the Ceylon Civil Service (CCS) in its last intake of cadets in 1962. Following the disestablishment of the CCS he was transferred to its successor the Ceylon Administrative Service which was later renamed as the Sri Lanka Administrative Service (SLAS). During his career in the SLAS he served as Government Agent of the Kandy District, Director of Information, Permanent Secretary to Ministry of Information and Broadcasting and later Chairman, The Associated Newspapers of Ceylon Ltd. Before entering active politics he worked as an International Civil Servant for UNESCO headquarters in Paris. He resides in Colombo.
Links: a. Colombo b. Colombo c. Paris d. UNESCO

Ex Output:
a

Ex Input:
Question: How old was Rudy Vallee when he reached number 15 on the Billboard charts? Passage:Rudy Vallee was the first artist to make the charts in Billboard magazine with "As Time Goes By" when he took the song to number 15 in 1931, but after the song was featured in the film Casablanca his recording was reissued and spent four weeks at number one in 1943. "Begin the Beguine" was first put on the charts by Xavier Cugat & His Waldorf-Astoria Orchestra with Don Reid on vocal for two weeks in 1935 when it reached number 13. Patti Austin's "We're in Love" made it to number 90 on the magazine's R&B chart in February 1978, and the Expanded Edition CD bonus track "I Never Said I Love You" was first recorded by Barbara Mandrell for her 1976 album Midnight Angel but was a number 84 pop hit for Orsa Lia that also spent a week at number one on the magazine's Easy Listening chart in 1979.
Links: a. Waldorf Astoria New York b. Casablanca (film) c. Barbara Mandrell d. Rudy Vallee

Ex Output:
d

Ex Input:
Question: Who had killed Stephanie Brown in War Crimes? Passage:Besides the aforementioned death of Stephanie Brown, many other side effects came about from this event. The biggest of these included Black Mask becoming the single crime boss in Gotham, something that would remain until his death at the hands of Catwoman. Another would be Commissioner Akins effectively making all vigilantes criminals, a move that would stay in place for over a year until the return of Commissioner Gordon to the Gotham City Police Department. The more controversial effect, not seen until the follow-up story War Crimes, was turning Doctor Leslie Thompkins against Batman, when she allows Stephanie Brown to die from her wounds as Batman's "punishment" for including children in his war on crime. Jason Todd, a former Boy Wonder, confirmed to be alive on as a violent vigilante the Red Hood who waged a one-man war against Black Mask and successfully crippling his criminal operation in the city before seeking revenge towards Batman and the Joker. Finally, the citizens of Gotham City no longer consider Batman to be an urban legend (which has been in place since Zero Hour), as he was caught on camera trying to save the life of a wounded student at the end of Act One. Additionally, Barbara Gordon lost the clock tower that served as her home and headquarters and left Gotham City, eventually moving to Metropolis. She would later re-establish her ties to Batman.
Links: a. Metropolis (comics) b. Leslie Thompkins c. Leslie Thompkins d. Joker (character)

Ex Output:
b