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: Who did the 197th fight against in the Battle for Caen? Passage:After spending many years training in the United Kingdom the 197th Brigade, together with the rest of the 59th Division, landed in France on 29 June 1944, D-Day + 23. The division, under command of XII Corps, became part of the British Second Army, which was engaged in the Battle for Caen. With the arrival of the 59th Division General Bernard Montgomery, commanding the Anglo-Canadian 21st Army Group, decided to renew the offensive to capture the city of Caen, which was originally a D-Day objective for the British 3rd Infantry Division which ultimately failed, due mainly to heavier resistance than expected. Operation Charnwood. The brigade's first action was Operation Charnwood with 2/6th South Staffords (of 177th Brigade), along with C Company of the 7th Battalion, Royal Northumberland Fusiliers (the divisional MG Battalion), together with numerous units of the Royal Artillery under command (and 510 Field Company, RE), and supported by the Churchill tanks of the 1st East Riding Yeomanry (of 27th Armoured Brigade). The brigade suffered comparatively light casualties in Charnwood. The 197th Brigade later fought in the Second Battle of the Odon, and the Battle of the Falaise Gap.
 Links: a. Battle for Caen b. Bernard Montgomery c. General (United Kingdom) d. 21st Army Group
Example Output: a

Example Input: Question: Which Russian city that Schandermani studied in was closer in distance to his former home town Tehran? Passage:Schandermani lived in Tehran, the capital of Iran. In 1953 US Central Intelligence Agency overthrew the Iranian government of Prime Minister Mohammed Mossadegh and restored Shah Mohammed Reza Pahlavi. Schandermani's father was a leftist politician. After CIA coup his father was arrested and sentenced to death. But he escaped from the detention centre and later on moved to the USSR where the Soviet officials granted him political asylum. In the early 60's Schandermani immigrated with his mother to Russia, where family was reunited. In 1961 he went to school in Moscow. Two years later he continued his school education in a special school for foreigners Interdom located in the Russian city Ivanovo. In 1971 he graduated from this school and moved to Dushanbe capitol of the former Soviet Republic of Tajikistan. In 1979 after the fall of the Shah's regime Schandermani went via West-Berlin back to Iran. After his arrival at the Tehran's airport Mehrabad he was arrested and jailed. Four days later he was expelled from the country to the German city Berlin, where he applied for political asylum. In 1992 he was naturalized and became citizen of the Federal Republic of Germany.
 Links: a. Berlin b. Iran c. Moscow d. Moscow
Example Output: c

Example Input: Question: In which city did Slobe attend art school? Passage:Slobe was born in Pittsburgh to a well-to-do Jewish family, and grew up in Chicago, enrolling in the School of the Art Institute of Chicago at 16; by 19 she was exhibiting paintings and winning prizes. She began exhibiting sculpture as well by the late 1930s, and came eventually to be known more as a sculptor than as a painter. In 1939 and 1940 she worked for the Works Progress Administration, creating art and teaching in a number of states, including Oregon. She became acquainted at this point with George Perle, whom she married in 1940; in 1942 the couple joined the Socialist Workers Party, and she took the pseudonym "Laura Gray". She was soon tasked with assisting in the organization of automotive workers, and it was at this time that she began her cartooning career. Encouraged to submit drawings to The Militant, her first appeared in the paper on March 4, 1944; she went on to become the paper's staff artist, submitting at least one cartoon almost weekly for the rest of her life. These drawings, which have been compared to the work of Boardman Robinson, Hugo Gellert, and Robert Minor, would be published in Trotskyist publications around the world. Some of her cartoons on the subject of civil rights would also be published in the African-American press.
 Links: a. African Americans b. Civil rights movement c. Boardman Robinson d. School of the Art Institute of Chicago
Example Output:
d