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: What city did Fauntleroy study medicine in? Passage:Archibald Magill Fauntleroy (b. in Warrenton, Virginia, 8 July 1837; d. in Staunton, Virginia, 19 June 1886) was a physician. He graduated in medicine at the University of Pennsylvania in 1856, and in 1857 entered the United States Army as assistant surgeon; but, upon the start of the Civil War, he and his brother, a lieutenant in the navy, resigned at the same time with their father, Thomas T. Fauntleroy. He became a surgeon in the Confederate army, and was president of the board for the admission of surgeons, and chief officer on the medical staff of Gen. Joseph E. Johnston, and served with him until the battle of Seven Pines. He was then ordered to build and organize the hospitals at Danville, Virginia, and afterward had charge of the military hospital at Staunton, Virginia, until the war ended. He remained and practised at Staunton after the war, and was for several years superintendent of the lunatic asylum at that place. His contributions to medical literature include papers on potassium bromide, chloral hydrate, the use of chloroform in obstetrical practice, and a “Report upon Advance in Therapeutics,” which was printed in the Transactions of the Virginia Medical Society.
 Links: a. Hospital b. Potassium bromide c. United States Navy d. University of Pennsylvania
Example Output: d

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 what city is the university that Thieme got his doctorate from? Passage:He received his doctorate in Indology in 1928 from the University of Göttingen, and habilitated there in 1932. From 1932 to 1935 he taught German and French at the University of Allahabad. He taught at Breslau from 1936 to 1940, and received tenure at Halle in 1941, but in the same year he was drafted to the German army, where he worked as an interpreter. In 1945, he was captured by U.S. troops in Württemberg. After his release in 1946, he returned to Halle, where he remained until 1953, when he moved to Frankfurt for a professorship in Indo-European studies, against the will of the GDR authorities. From 1954 to 1960 he was in Yale, and from 1960 to his retirement in 1972 in Tübingen as professor for Religious studies and Indology.
 Links: a. Indo-European studies b. Martin Luther University of Halle-Wittenberg c. Tübingen d. University of Göttingen
Example Output:
d