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: Was Chevon Walker born in the Caribbeans?  Passage:Chevon Walker (born May 9, 1987 in Montego Bay, Jamaica) is a former professional Canadian football running back and kick returner for the Winnipeg Blue Bombers of the Canadian Football League. He played NCAA football for the Sioux Falls Cougars. He played two years of his career as a professional football player in the Canadian Football League for the Hamilton Tiger-Cats. In 2014, the Ottawa Redblacks selected him in the expansion draft. He started the 2015 season with the Ottawa Redblacks before he was released on August 28, 2015. On September 1, 2015, it was announced that Walker had signed with the Winnipeg Blue Bombers. Chevon Walker has over 1000 rushing yards and seven touchdowns in three years of professional play.
 Links: a. Hamilton Tiger-Cats b. Winnipeg Blue Bombers c. Canadian Football League d. Montego Bay
Example Output: d

Example Input: Question: For how many years did the man serve as President that swept all five boroughs of NYC in 1964? Passage:Roosevelt won his home state by means of a dominance of the massively populated New York City area, performing even more strongly than he had in 1932. Roosevelt took over seventy percent of the vote in the boroughs of Manhattan, Brooklyn, and the Bronx, and took over sixty percent of the vote in Queens and Staten Island. For the era, this was an historically overwhelming victory for a Democratic presidential candidate in the five boroughs of New York City, and enough to easily secure a statewide win for Roosevelt. The emergence of the New Deal Coalition was at its peak in 1936, and made American cities with their powerful political machines core bases of support for the Democratic Party. The Great Depression had accelerated the process of urbanization of the Democratic Party which had begun with the election of 1928. Roosevelt’s landslide win in New York City was a fruit born by this process, and over the whole nation he achieved majorities in the largest cities totalling twice what Harding had achieved in 1920. 1936 was the third election in a row in which Democrats had won all five boroughs of NYC, following 1928 and 1932. After 1936, New York City would remain Democratic overall in every election that has followed, although no presidential candidate would sweep all five boroughs of NYC again until Lyndon Johnson in 1964. Partly as a consequence of this, FDR’s 1936 victory in New York State would also be the strongest statewide Democratic performance ever in terms of both margin and vote share until 1964.
 Links: a. Lyndon B. Johnson b. 1964 United States presidential election in New York c. Manhattan d. 1928 United States presidential election
Example Output: a

Example Input: Question: When was the high school that Rogers graduated from founded? Passage:Rogers was born in Somerville, Massachusetts, in 1921. He graduated from Newton North High School in Newtonville in 1939. He enlisted as a private in April 1942, became an aviation cadet in August 1942, and completed pilot training and received a commission as a second lieutenant at Yuma, Arizona in 1943. During World War II, Rogers served as a P-39 Airacobra pilot with the 353rd Fighter Squadron at Hamilton Field, California He moved with the squadron to the European Theater of Operations, flew P-51 Mustang aircraft and became squadron commander. He is a fighter ace, credited with 12 enemy aircraft while flying from bases in England, Italy and France. He returned to the United States in January 1945 and was assigned to flying duties in fighter aircraft until November 1945 when he became commandant of troops at Hunter Field, Georgia. Between September 1946 and June 1947, he served as flight commander, operations officer, and commander of the 77th Fighter Squadron, 20th Fighter Group, at Shaw Air Force Base, South Carolina. He next was a student at the University of Virginia under the Air Force Institute of Technology program from July 1947 to August 1949. In August 1949 Rogers was transferred to Headquarters United States Air Force as an intelligence staff officer in the Directorate of Intelligence. He attended the language course at Lacaze Academy in Washington D.C., from October 1952 to June 1953, in preparation for attaché duties. He received a bachelor of science degree in military science from the University of Maryland in 1952. Rogers served as assistant air attach in Madrid, Spain from June 1953 to February 1957. He then returned to Headquarters United States Air Force as chief of the Current Intelligence Branch in the Office of the Deputy Chief of Staff, Operations. In 1958 he was transferred to the Organization of the Joint Chiefs of Staff as director of current intelligence, J-2, and in August 1960 entered the National War College. In July 1961 he was assigned to the Office of the Assistant Secretary of Defense with duty station at the State Department.
 Links: a. Air Force Institute of Technology b. 353rd Combat Training Squadron c. Newton North High School d. European Theater of Operations, United States Army
Example Output:
c