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.

Input: Consider Input: Question: When did Frank Damrosch's school change names? Passage:Willson was born in Mason City, Iowa to John David Willson and Rosalie Reiniger Willson. He had a brother two years his senior, John Cedrick, and a sister twelve years his senior, the children's author Dixie Willson. Willson attended Frank Damrosch's Institute of Musical Art (which later became the Juilliard School) in New York City. He married his high school sweetheart, Elizabeth "Peggy" Wilson, on August 29, 1920. Willson, a flute and piccolo player, was a member of John Philip Sousa's band (1921–1923), and later the New York Philharmonic Orchestra under Arturo Toscanini (1924–1929). Willson then moved to San Francisco, California as the concert director for radio station KFRC, and then as a musical director for the NBC radio network in Hollywood. His on-air radio debut came on KFRC in 1928 on Blue Monday Jamboree.
 Links: a. Frank Damrosch b. Mason City, Iowa c. Juilliard School d. John Philip Sousa

Output: c


Input: Consider Input: Question: How many matches did Nakagawa play for the Yokohama Marinos in 1996? Passage:Nakagawa was born in Osaka Prefecture on August 26, 1969. After graduating from Kokushikan University, he joined Yokohama Flügels in 1992. However he could hardly play in the match behind Atsuhiko Mori. In June 1995, he moved to rival club in Yokohama, Yokohama Marinos. In 1996, he played many matches when regular goalkeeper Yoshikatsu Kawaguchi let the club for 1996 Summer Olympics and injury. In 1998, he moved to Kyoto Purple Sanga. However he could hardly play in the match behind Shigetatsu Matsunaga. In March 2000, he moved to Nagoya Grampus Eight on loan. In 2001, he returned to Purple Sanga was relegated to J2 League. From June, he became a regular goalkeeper and the club returned to J1 League in a season. However he could hardly play in the match in 2002 season and retired end of 2002 season.
 Links: a. Atsuhiko Mori b. Football at the 1996 Summer Olympics c. Yoshikatsu Kawaguchi d. Yokohama F. Marinos

Output: d


Input: Consider Input: Question: Of the two Popes Markos was sent to on his missions, who held that position longer? Passage:He first appears in Constantinople in 1401, qualified as an oikeios of the emperor. In 1417 he was possibly sent on a diplomatic mission to the Venetians in the Morea. In 1422 and again in 1429 he was sent by Emperor John VIII Palaiologos as an envoy to the Ottoman Sultan Murad II. At the time he had the relatively lowly rank of protovestiarites, but was quickly promoted to protostrator and then to the senior rank of megas stratopedarches, which he held already during his mission in 1430 to Pope Martin V. During his return from the mission to the Pope, on orders from the Emperor, he raised Thomas Palaiologos to the rank of Despot in the Morea. He led two more missions abroad, one in 1433 to Pope Eugene IV, and one in 1438 to Venice.
 Links: a. Despot (court title) b. Pope Eugene IV c. Ottoman Empire d. Pope Martin V


Output: d