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 attended the conference held near Berlin in January 1942? Passage:Following the invasion of Poland in 1939 most of the 3.5 million Polish Jews were rounded up and put into newly established ghettos by Nazi Germany. The system was intended to isolate the Jews from the outside world in order to facilitate their exploitation and abuse. The supply of food was inadequate, living conditions were cramped and unsanitary, and the Jews had no way to earn money. Malnutrition and lack of medicine led to soaring mortality rates. In 1941, the initial victories of the Wehrmacht over the Soviet Union inspired plans for the German colonisation of occupied Poland, including all territory within the new district of General Government. At the Wannsee Conference held near Berlin on 20 January 1942, new plans were outlined for the genocide of the Jews, known as the "Final Solution" to the Jewish Question. The extermination programme was codenamed Aktion Reinhard in German, to differentiate it from the Einsatzgruppen mass killing operations in territories conquered by Nazi Germany, in which half a million Jews had already been annihilated.
Links: a. Einsatzgruppen b. Wannsee Conference c. Operation Reinhard d. General Government

Ex Output:
b

Ex Input:
Question: How many teams are in the leagues which compete for the cup annually? Passage:In 2002, the International Ice Hockey Federation (IIHF) announced that it would acknowledge the site of Victoria Rink with "a commemorative plaque or other historical site marker to remind the passers-by of the existence of the Victoria Skating Rink, the birthplace of organized hockey." The commemoration has been marked in two ways. On May 22, 2008, a commemorative plaque was dedicated at the nearby Centre Bell, along with a plaque honouring James Creighton. Further, the IIHF created the Victoria Cup, a trophy named for the arena, for whichalong with 1 million Swiss francsone National Hockey League team and the champion of the European Champions Hockey League play-off annually. The first Cup match was held in Berne, Switzerland on October 1, 2008 between the New York Rangers and the Metallurg Magnitogorsk. The next, and last, edition of the Victoria Cup was held in Zurich on September 29, 2009, between the ZSC Lions and the Chicago Blackhawks.
Links: a. National Hockey League b. Chicago Blackhawks c. National Hockey League d. ZSC Lions

Ex Output:
a

Ex Input:
Question: How many years after the first MCCA Knockout Trophy event did Lovell make his debut for Wales Minor Counties? Passage:Lovell made his debut for Wales Minor Counties in the 1998 MCCA Knockout Trophy against the Warwickshire Cricket Board. He played Minor counties cricket for Wales Minor Counties from 1998 to 2004, which included 12 Minor Counties Championship matches and 3 MCCA Knockout Trophy matches. In 1998, he made his List A debut against Nottinghamshire, in the NatWest Trophy. He played a further List A match for the team, against the Sussex Cricket Board in the 2nd round of the 2002 Cheltenham & Gloucester Trophy which was held in 2001. In his 2 List A matches, he scored 13 runs at a batting average of 6.50, with a high score of 8.
Links: a. MCCA Knockout Trophy b. Minor Counties Cricket Championship c. MCCA Knockout Trophy d. Minor Counties Cricket Championship

Ex Output:
a