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: Is Prague the capital of a country? Passage:In the months following up to the September 11 attacks, officials at the Czech Interior Ministry asserted that Atta made a trip to Prague on April 8, 2001, to meet with an Iraqi intelligence agent named Ahmed Khalil Ibrahim Samir al-Ani. This piece of information was passed on to the FBI as "unevaluated raw intelligence". Intelligence officials have concluded that such a meeting did not occur. A Pakistani businessman named Mohammed Atta had come to Prague from Saudi Arabia on May 31, 2000, with this second Atta possibly contributing to confusion. The Egyptian Mohamed Atta arrived at the Florenc bus terminal in Prague, from Germany, on June 2, 2000. He left Prague the next day, flying on Czech Airlines to Newark, New Jersey, U.S. In the Czech Republic, some intelligence officials say the source of the purported meeting was an Arab informant who approached the Czech intelligence service with his sighting of Atta only after Atta's photograph had appeared in newspapers all over the world. United States and Czech intelligence officials have since concluded that the person seen with Ani was mistakenly identified as Atta, and the consensus of investigators has concluded that Atta never attended a meeting in Prague.
 Links: a. Prague b. Prague c. Germany d. Prague

Ex Output:
a


Ex Input:
Question: Which Nobel Laureate had published more papers by the year Barschall emigrated to the US, Fritz Haber or Emil Fischer? Passage:Barschall was born as Heinrich Hermann Barschall in Berlin, Germany; his father was a patent attorney who had received a Ph.D. in chemistry after studying with Nobel Laureates Emil Fischer and Fritz Haber. After beginning study in several universities in Germany, he emigrated to the United States in 1937 during the early Holocaust period; though raised as a Lutheran, he had some Jewish ancestry. He received his Ph.D. from Princeton University in 1940 under the direction of Rudolf Ladenburg; he also worked closely with John A. Wheeler. After a suggestion by Niels Bohr, he carried out in only a few days with fellow graduate student Morton H. Kanner the first demonstration of fission by fast neutrons and thorium and uranium. His thesis was on the interaction of fast neutrons with helium. In a paper with John A. Wheeler he reported the discovery of spin-orbit coupling in neutron scattering.
 Links: a. Fritz Haber b. Jews c. Nuclear fission d. Emil Fischer

Ex Output:
d


Ex Input:
Question: Who ran in the election of 1972 if not Grosheide? Passage:Grosheide was elected as a Member of the House of Representatives after the election of 1971, taking office on 11 May 1971. Following the Grosheide was appointed as State Secretary for Justice in the Cabinet Biesheuvel I, taking office on 28 July 1971. The Cabinet Biesheuvel I fell just one year later on 19 July 1972 and continued to serve in a demissionary capacity until it was replaced by the caretaker Cabinet Biesheuvel II with Grosheide continuing as State Secretary for Justice, taking office on 9 August 1972. In August 1972 Grosheide announced that he would not stand for the election of 1972. The Cabinet Biesheuvel II was replaced by the Cabinet Den Uyl on 11 May 1973. Grosheide remained in active politics, in January 1974 he was nominated as Mayor of Rijswijk, serving from 1 February 1974 until his resignation on 1 July 1978. Grosheide also worked as the director of the Abraham Kuyper Foundation from 1 July 1974 until 1 August 1979. Grosheide worked as a civil servant for the Ministry of Justice from July 1978 until February 1993 and served as Director-General of the Custodial Institutions Agency from July 1978 until January 1991. Grosheide was appointed as Special Coordinator for European Immigration an Asylum and Deputy Secretary-General of the Ministry of Justice on 1 January 1991. In January 1993 Grosheide was nominated as Extraordinary Member of the Council of State, he resigned as a Special Coordinator the day he was installed as a Member of the Council of State, serving from 1 February 1993 until 1 September 2000.
 Links: a. 1972 Dutch general election b. Ministry of Justice and Security c. List of Ministers of Justice of the Netherlands d. List of Ministers of Justice of the Netherlands

Ex Output:

a