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: How many people did Arnstadt command as a company commander of the 6th border company in Dermbach? Passage:In June 1949, Arnstadt registered for service with the Volkspolizei, the police force of the Soviet Occupation Zone, becoming an Anwärter der VP (police cadet) with the Kasernierte Volkspolizei in Gotha. In March 1950, Arnstadt was appointed to the German Border Police (Deutsche Grenzpolizei) in Dermbach, patrolling the Inner German border with West Germany. In 1952, Arnstadt failed his first attempt to become an officer at the police school in Sondershausen. In 1953, his marriage ended in divorce, with his two children Veronika and Uwe staying with the mother, and remarried shortly after. In 1954, Arnstadt passed his officer training at Sondershausen and was appointed the rank of Unterleutnant, and the following year was promoted to lieutenant. Arnstadt functioned as a recruiter for the German Border Police until 1957 when he was appointed as a company commander of the 6th border company in Dermbach. Arnstadt was responsible for a section of the border at Wiesenfeld, a region of Bezirk Suhl in the Rhön Mountains at the westernmost point of the Warsaw Pact. Arnstadt's section contained the highly-strategic Fulda Gap, which aroused the special interest of NATO, and a short distance from the US Army's Observation Post Alpha. Arnstadt moved with his wife to Wiesenfeld and in April 1957 became an unofficial collaborator (Geheimer Informator) of the Ministry for State Security (Stasi) until this relationship was ended fourteen months later. 
 Links: a. Company commander b. Inner German border c. Dermbach d. Kasernierte Volkspolizei

Ex Output:
a


Ex Input:
Question: What were the names of the parents of the musician Bolland particularly embraced? Passage:Growing up as "and only child in a house without culture," (Bolland says that his "mother and father had no use for art, literature or music"), he embraced the late 1960s pop culture explosion of "pirate radio stations, music (particularly Frank Zappa...), drug taking, psychedelia, "peace and love," "dropping out," the underground scene, Oz Magazine," and other aspects of hippy culture epitomised by underground comix such as Robert Crumb's Zap Comix. Having taken both O-Level and A-Level examinations in art, Bolland spent five years at art school (starting in 1969) learning graphic design and Art history. Learning to draw comics, however, was "more a self-taught thing," with Bolland eventually writing a 15,000-word dissertation in 1973 on Neal Adams – an "artist [his teachers] had never heard of." He would later recall:
 Links: a. Neal Adams b. Graphic design c. Zap Comix d. Frank Zappa

Ex Output:
d


Ex Input:
Question: Who was on the Supreme Court the year it ruled to remove prayer from schools? Passage:On July 10, 1961, Shehan returned to Baltimore as its Coadjutor Archbishop (with right of succession) and Titular Archbishop of Nicopolis ad Nestum. He succeeded Francis Patrick Keough as Archbishop of Baltimore on December 8 of that same year. In this position, he led the nation's first diocese and held precedence, except for Cardinals created earlier and without the honorary title of primacy, over the Church in America. After the Supreme Court ruled to remove prayer from public schools in 1962, Shehan warned that "secularization threatens to become a sort of state religion established by court decree". He was also a strong advocate of civil rights, banning segregation in all of Baltimore's Catholic institutions and walking in the March on Washington for Jobs and Freedom in 1963. He also maintained relations with Judaism and Eastern Orthodoxy. Cardinal Shehan worked with his friend Harry Lee Doll, Episcopal Bishop of Maryland and President of the Maryland Council of Churches on both civil rights and ecumenical issues. Along with the President of St. Mary's Seminary and University, Cardinal Shehan and Bishop Doll in 1968 founded Baltimore's Ecumenical Institute, in the city's Roland Park neighborhood.
 Links: a. Diocese b. Supreme Court of the United States c. Nicopolis ad Nestum d. Diocese

Ex Output:

b