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: How wide is the body of water that separates the Eurasian and North American continents? Passage:The Russian Empire began its interest of the Pacific Northwest in the 18th century, initially curious if there was a land connection between the Eurasian and North American Continents. Two expeditions were led by Vitus Bering, with the findings proving the separation of two continents through the Bering Sea. Being the first European nation to chart much of what comprises the modern American state of Alaska, many locations retain Russian place names. The discovery of sizable fur bearing populations by Bering drew the attention of promyshlenniki previously engaged in the Siberian fur trade. Based out of the Siberian ports of Okhotsk or Petropavlovsk, fur trappers sailed and reported the location of land formations like the Aleutian Islands, Kodiak Island and portions of the Alaskan mainland. Relations with Native Alaskans was often terse due to the uncontrolled actions of particular promyshlenniki who killed and raped Indigenous on islands they trapped furs.
 Links: a. Bering Sea b. Siberia c. Russian Empire d. Bering Sea

Ex Output:
a


Ex Input:
Question: How many times has the film director of Marnie been nominated for an Oscar? Passage:Beck was born to the actress Cindy Robbins. She starred in such movies as Massacre at Central High, Roller Boogie, and . Among her notable television credits are  General Hospital, Capitol (billed as Kimberly Beck-Hilton), Fantasy Island, Buck Rogers in the 25th Century (as one side of a Jekyll-and-Hyde character, whose counterpart was played by Trisha Noble), Westwind, The Brady Bunch, Dynasty, Lucas Tanner and Peyton Place (as the character Kim Schuster). As a child, she appeared in Alfred Hitchcock's Marnie and television commercials for such products as Mattel Toymakers Barbie and Chatty dolls. She had a very brief appearance on The Munsters as a transformed Eddie Munster after Eddie drank the rest of Grandpa's Texas Playgirl Potion in season 1, episode 33 entitled "Lily Munster, Girl Model". She starred on the pilot episode of Eight Is Enough as Nancy Bradford, the role that, in the series, went to Dianne Kay. She also had the role of Diane Porter in Rich Man, Poor Man Book II with Peter Strauss and appeared in a host of other well-received television miniseries productions. In 1968, she and her stepfather Tommy Leonetti, then working in Australia, recorded the single "Let's Take a Walk", released under the name of "Tommy Leonetti and his daughter Kim". It charted at #4 on the Melbourne charts.
 Links: a. Alfred Hitchcock b. The Brady Bunch c. Trisha Noble d. Trisha Noble

Ex Output:
a


Ex Input:
Question: How long had Gregorio del Pilar been a General for when he was killed? Passage:After the battery returned from the Philippines in 1899, March was assigned as the aide to Major General Arthur MacArthur, Jr. during the Philippine–American War. Later that year he was promoted to major. He continued to serve in the Philippines, participated as part of General Loyd Wheaton's expedition in battles at San Fabian, Buntayan Bridge and San Jacinto. He commanded the U.S. forces in the Battle of Tirad Pass, 2 December 1899, where General Gregorio del Pilar was killed, and received the surrender of General Venacio Concepción, Chief of Staff to Philippine President Aguinaldo at Cayan, 5 December 1899. He served as provincial governor of districts including Lepanto-Bontoc and Ilocos Sur from February to June 1900, and then the Abra Province from June 1900 to February 1901. He then served as Commissary General of Prisoners for the Philippine Islands through 30 June 1901, when he mustered out of the U.S. Volunteers.
 Links: a. Venancio Concepción b. Gregorio del Pilar c. Mountain Province d. Abra (province)

Ex Output:

b