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 long was the Nazi Party around for before Stahlecker joined it? Passage:On 1 May 1932, Stahlecker joined the Nazi Party (no. 3,219,015) as well as the SS (no. 73,041). On 29 May 1933, he was appointed deputy director of the Political Office of the Württemberg State Police. In 1934, he was appointed head of the Gestapo in the German state of Württemberg and soon assigned to the main office of the Sicherheitsdienst (SD). On 11 May 1937, he became head of the Gestapo in Breslau. After the incorporation of Austria in 1938, Stahlecker became SD chief of the Danube district (Vienna), a post he retained even after being promoted to SS-Standartenführer. In the summer of 1938, Stahlecker became Inspector of the Security Police in Austria, succeeding Gestapo chief Heinrich Müller in that position. As of 20 August 1938, Stahlecker was the formal head of the Central Agency for Jewish Emigration in Vienna, though its de facto leader was Adolf Eichmann. Differences of opinion with Reinhard Heydrich motivated Stahlecker to move to the Auswärtiges Amt (Foreign Office), after which he held posts as the commander of the Security Police and SD in the Protectorate of Bohemia and Moravia under SS-Brigadeführer Karl Hermann Frank. In mid-October 1939, Eichmann and Stahlecker decided to begin implementation of the Nisko Plan.
 Links: a. Nazi Party b. Lublin Reservation c. Federal Foreign Office d. Brigadeführer
Example Output: a

Example Input: Question: What was the first game produced by Bullfrog Productions? Passage:Peter Molyneux founded Bullfrog Productions in 1987, which was later acquired by Electronic Arts (EA) in 1995. Around 1996, Molyneux had contemplated leaving Bullfrog, as he felt limited in his creative freedom under Electronic Arts. He along with Lionhead's eventual co-founders, Mark Webley, Tim Rance and Steve Jackson, started developing plans for a new studio. In 1997, due to a series of events and from issues arising between Molyneux and Electronic Arts, he ultimately left the company in July 1997, co-founding Lionhead shortly after that, along with Mark Webley, Tim Rance, and Steve Jackson (who co-founded Games Workshop and co-authored the Fighting Fantasy series). On his recruitment, Jackson said "It was an offer I couldn't refuse", as he wanted to get back to making games instead of writing about them (Jackson had interviewed Molyneux about Bullfrog and Dungeon Keeper, but for much of it, they discussed German board games instead. This led to them meeting frequently for an event called "Games Night"). Molyneux assured him that his lack of programming knowledge was an asset rather than a problem. Lionhead is the second Bullfrog break-off group, after Mucky Foot Productions (founded in February 1997). According to Glenn Corpes (who co-founded another: Lost Toys), Lionhead was Molyneux's "take on what Bullfrog used was".
 Links: a. Peter Molyneux b. Peter Molyneux c. Bullfrog Productions d. Steve Jackson (British game designer)
Example Output: c

Example Input: Question: When was the city the yeshiva fled from founded? Passage:When the Bolsheviks revolted, the yeshiva was forced to flee from Lithuania to Kletsk, Poland. During his three years in Kletsk, Yechiel Michel attended the famed Talmudic lectures of Rabbi Meltzer and his son-in-law, Rabbi Aharon Kotler. Then he transferred to the Mir yeshiva, where he became a leading student of Rabbi Yeruchom Lebovitz and learned together with Rabbi Yechiel Michel Schlesinger, future rosh yeshiva of Yeshivas Kol Torah in Jerusalem, and Rabbi Yonah Karpilow of Minsk, who was killed in the Holocaust and whose Yonas Eilem was published posthumously. At this time, Rabbi Chaim Shmuelevitz and Rabbi Aryeh Leib Malin also studied in the Mir yeshiva. Despite being surrounding by such luminaries in Torah, R' Yechiel Michel was nonetheless thought of as "the genius of the yeshiva".
 Links: a. Aryeh Leib Malin b. Mir Yeshiva (Belarus) c. Torah d. Lithuania
Example Output:
d