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: In which country is the seaport city of Porto located where the wine received its name "port"? Passage:Port is produced from grapes grown and processed in the demarcated Douro region. The wine produced is then fortified by the addition of a neutral grape spirit known as aguardente to stop the fermentation, leaving residual sugar in the wine, and to boost the alcohol content. The fortification spirit is sometimes referred to as brandy but it bears little resemblance to commercial brandies. The wine is then stored and aged, often in barrels stored in a Lodge (meaning "cellar") as is the case in Vila Nova de Gaia, before being bottled. The wine received its name, "port", in the later half of the 17th century from the seaport city of Porto at the mouth of the Douro River, where much of the product was brought to market or for export to other countries in Europe. The Douro valley where port wine is produced was defined and established as a protected region, and the name Douro thus an official appellation, in 1756, making it the third oldest, after Chianti (1716) and Tokaj (1730).
Links: a. Barrel b. Tokaji c. Vila Nova de Gaia d. Porto
Example Output: d

Example Input: Question: Who did John Vincent Barry compete against in the election of 1943? Passage:In 1939, Barry joined the Australian Labor Party and ran, unsuccessfully, for the federal seat of Balaclava in the electoral year of 1943. However, he later became a member of the Victorian central executive in 194547, as well as becoming a member of the Overseas Telecommunications Commission in 1946-47. He was also elected chairman of the ethics committee of the Australian Journalists' Association, after becoming a member in 1943. Appointed as a King's Counsel (now known as the Senior Counsel) in 1942, Barry assisted Sir Charles Lowe in the inquiry into the Darwin air raids. Representing the politician, Eddie Ward in a royal commission into the Brisbane Line, Barry was appointed commissioner to investigate the suspension of government in Papua New Guinea.
Links: a. Overseas Telecommunications Commission b. Politics of Australia c. Brisbane Line d. Politics of Australia
Example Output: b

Example Input: Question: How old was Edward Bland when Danner founded Art Associates? Passage:Born in 1915, Margaret Esse Danner came of age in Chicago during the Great Migration. Sources place her birth in Pryorsburg, Kentucky, in 1915, although she adamantly claimed Chicago as her birthplace. In eighth grade, she won first prize in a school contest for "The Violin", a poem describing Stradivarius and Guarnerius violins. Danner's college education included courses at Loyola University, Northwestern University, YMCA College, and the newly founded Roosevelt College. Perhaps equally significant was her education in the African-American cultural community of Chicago's South Side, which in the 1930s and 1940s harbored grassroots cultural institutions and informal circles devoted to politics, education, art and literature and often tied to the Communist Popular Front. Although Danner stayed detached from Communism and would eventually oppose all radical politics, she participated in various South Side groups, including Inez Cunningham Stark's poetry workshop at the South Side Community Art Center, along with Gwendolyn Brooks and Margaret Goss Burroughs, her "sometime friends (and rivals)." In 1946, Danner founded Art Associates to gather and promote Chicago's black writers and poets. She counted as friends the poet and critic Edward Bland, as well as Hoyt Fuller, who would head the revived Negro Digest (later Black World) beginning in 1951.
Links: a. Pryorsburg, Kentucky b. Edward Bland c. Edward Bland d. African Americans
Example Output:
b