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: How many people attended the conference held near Berlin in January 1942? Passage:Following the invasion of Poland in 1939 most of the 3.5 million Polish Jews were rounded up and put into newly established ghettos by Nazi Germany. The system was intended to isolate the Jews from the outside world in order to facilitate their exploitation and abuse. The supply of food was inadequate, living conditions were cramped and unsanitary, and the Jews had no way to earn money. Malnutrition and lack of medicine led to soaring mortality rates. In 1941, the initial victories of the Wehrmacht over the Soviet Union inspired plans for the German colonisation of occupied Poland, including all territory within the new district of General Government. At the Wannsee Conference held near Berlin on 20 January 1942, new plans were outlined for the genocide of the Jews, known as the "Final Solution" to the Jewish Question. The extermination programme was codenamed Aktion Reinhard in German, to differentiate it from the Einsatzgruppen mass killing operations in territories conquered by Nazi Germany, in which half a million Jews had already been annihilated.
 Links: a. Einsatzgruppen b. Wannsee Conference c. Operation Reinhard d. General Government
Example Output: b

Example Input: Question: What position does the person who moved Donnelly to Western Economic Diversification currently hold? Passage:Fin Donnelly (born May 27, 1966) is a Canadian politician, who was elected to the House of Commons of Canada to represent the electoral district of Port Moody—Coquitlam. He is a member of the New Democratic Party. Donnelly was first elected as a member of parliament in a by-election on November 9, 2009, in the New Westminster—Coquitlam electoral district. In the one year he spent in the 40th Canadian Parliament, he acted as the party's fisheries critic and introduced six private member bills. He was re-elected in 2011 and in the ensuing 41st Parliament he re-introduced the same six bills, two of which, concerning the crime of luring a child were adopted, were adopted in the Safe Streets and Communities Act. He also introduced the bill titled Ban on Shark Fin Importation Act which was voted upon but defeated by the Conservative Party majority. He acted was the official opposition's critic on Fisheries and Oceans until the 2012 leadership election after which Tom Mulcair moved him over to critic on Western Economic Diversification and then demoted him to role of deputy critic. Donnelly again won re-election in the 2015 federal election and was promoted back to fisheries critic. In the 42nd Parliament he re-introduced his previous bill to make closed containment facilities mandatory for commercial finfish aquaculture but the bill was defeated.
 Links: a. Tom Mulcair b. New Democratic Party c. Western Economic Diversification Canada d. House of Commons of Canada
Example Output: a

Example Input: Question: In which city did Moss Jr. earned his bachelor degree? Passage:Moss was born in and raised in LaGrange, Georgia, the fourth of five children. After being orphaned at 16 he earned his B.A. at Morehouse College in 1956, before earning his Master of Divinity from the Morehouse School of Religion in 1959. At Morehouse Moss was taught and mentored by Benjamin Mays, who was also a mentor to Martin Luther King Jr. While at Morehouse Moss helped lead sit-ins and other activities to protest segregation. He completed further graduate coursework at the Interdenominational Theological Center from 1960 to 1961. He also earned a Doctor of Ministry from United Theological Seminary in 1990, where he was taught by Samuel DeWitt Proctor and became friends with Jeremiah Wright, pastor of the famous Trinity United Church of Christ in Chicago and pastor of Barack Obama. Moss's son, Otis Moss III, would later take over as senior pastor for Wright after he was caught up in a controversy during the 2008 presidential election over the content of sermons he gave during the time in which Barack Obama attended the church.
 Links: a. Trinity United Church of Christ b. Morehouse College c. Barack Obama d. Samuel DeWitt Proctor
Example Output:
b