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.

Ex Input:
Question: What was the Garland Fund used for? Passage:Vann stirred up controversy and 10,000 new readers by hiring George Schuyler in 1925, whose editorials and opinions made him famous as the "black H.L. Mencken" (who was a Courier subscriber). Under Vann, the Courier also worked as a tool for social progress. Most significantly, the paper extensively covered the injustices on African Americans perpetrated by the Pullman Company and supported the Brotherhood of Sleeping Car Porters. Vann wrote to gain support for causes such as improved housing conditions in the Hill District, better education for black students, and equal employment and union opportunities. However, Vann often used his Courier editorials to publicly fight with the National Association for the Advancement of Colored People (NAACP) and W. E. B. Du Bois over issues such as President Calvin Coolidge's grants of clemency to black soldiers involved in the Houston Riot and Vann's allegations that James Weldon Johnson embezzled money for personal use from the NAACP and the Garland Fund. This disharmony was resolved in 1929 by published apologies by Vann, Du Bois, and Johnson, and within the decade, Du Bois became a regular Courier contributor. But in 1938, Vann's Courier ended up at odds with the NAACP once again. Vann, through national campaigns and contact with President Franklin D. Roosevelt pursued inclusion of African-American units in the United States Armed Forces. Vann saw this as an achievable step on the path to integration of the military, but the NAACP leadership, primarily Walter White, publicly disagreed with this half-measure, despite the protests of Thurgood Marshall. As a result of the Couriers influence and Vann's political clout, New York Congressman Fish successfully added an amendment prohibiting racial discrimination in selection and training of men drafted to the Selective Training and Service Act of 1940.
Links: a. H. L. Mencken b. Hamilton Fish III c. Garland Fund d. United States Armed Forces

Ex Output:
c

Ex Input:
Question: When did the school Cerny got his M.B.A. open?
Passage:Keith Cerny is an American opera director and businessman. From 2004-2007 he was Executive Director and CFO of the San Francisco Opera and from 2010-2018 he was General Director of the Dallas Opera. In 2018 he was appointed General Director of the Calgary Opera. He is also the former CEO of Sheet Music Plus (2008-2010), the world's largest interest-based sheet-music company. He is a graduate of the University of California, Berkeley (B.A. in Music and B.S. in Physics), the Harvard Business School (M.B.A.), and the Open University in the United Kingdom (Ph.D. in Economic Development Studies/Econometrics). He also studied conducting, voice, and accompanying at the Guildhall School of Music and Drama in London and studied opera-accompanying in English National Opera's repetiteur training course. He also worked for McKinsey & Company for six years where he was a Senior Engagement Manager, and seven years with the consulting firm Accenture. He is also an Executive Board Member for Opera America.
Links: a. English National Opera b. Harvard Business School c. Guildhall School of Music and Drama d. Guildhall School of Music and Drama

Ex Output:
b

Ex Input:
Question: How old was Basil Lekapenos when he joined on as the chamberlain of Constantine VII Porphyrogennetos? Passage:His role during the reign of his father is unknown. He first appears as the protovestiarios (chamberlain) of Constantine VII Porphyrogennetos (r. 913959), the legitimate emperor of the Macedonian dynasty, but it is unclear whether it was Romanos Lekapenos who appointed him to the post or whether Constantine VII gave it to him after Romanos' downfall. The contemporary Theophanes Continuatus reports that Basil was a loyal and dedicated servant of Constantine VII, and had a close relationship with Constantine's wife, and his own half-sister, Helena Lekapene. Following the deposition of Romanos Lekapenos in December 944, Basil supported Constantine VII when he regained power from Basil's half-brothers Stephen Lekapenos and Constantine Lekapenos in January 945, and was rewarded with senior titles and offices: in his seals and dedicatory inscriptions he is called a basilikos, patrikios, "paradynasteuon of the Senate" (likely a distortion indicating the combined titles of paradynasteuon and protos, "first", of the Senate), as well as megas baioulos (grand preceptor) of Constantine's son and heir, the future Romanos II (r. 959963). In ca. 947/8 he was raised further from protovestiarios to parakoimomenos (head chamberlain), in succession to Theophanes.
Links: a. Byzantine Senate b. Constantine VII c. Constantine Lekapenos d. Helena Lekapene

Ex Output:
b