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: Did Blake or Philby defect first? Passage:In May 1986, Souther requested Soviet citizenship, aware that the investigation against him was progressing. In June, fearing imminent arrest, Souther defected to the Soviet Union by flying from the United States to Rome, where the Soviet intelligence services transferred him to Moscow. Initially, Soviet counterintelligence units were suspicious of Souther's defection and feared that he was a double agent for the CIA, but he was cleared shortly afterwards. On 2 October 1986, Souther was granted Soviet citizenship in a decree from the Presidium of the Supreme Soviet, and adopted the Russian name Mikhail Yevgenyevich Orlov. Souther was well-received by the Soviet authorities, gifting him an apartment in Moscow and a dacha on the outskirts of the city, and promoting him to the rank of major in the KGB – one of few foreign spies to be commissioned as an officer in the agency. Souther became actively engaged in scientific activities, developed his own English teaching program, walked around Moscow a lot, and travelled to other Soviet cities. Souther met and befriended other foreign Soviet intelligence agents that had defected including Kim Philby and George Blake. Souther married a Russian woman named Elena, an English teacher at the Intelligence Institute, and they had a daughter named Alexandra. In early 1989, Souther was awarded an Order of Friendship of Peoples for his contributions in the intelligence services following a petition from the KGB leadership.
 Links: a. George Blake b. George Blake c. Dacha d. Major

Ex Output:
a


Ex Input:
Question: How many regular NHL seasons had there been before the 1999-2000 hockey season? Passage:Before the 1999–2000 NHL season Torchetti was hired as an assistant coach for the Tampa Bay Lightning under Steve Ludzik. In 2002 Torchetti was hired as head coach of the San Antonio Rampage. Due to his many coaching stints in the city, "Torch" has kept close ties to San Antonio. After 65 games he was promoted to assistant coach with the parent club, the Florida Panthers. In 2004, he served 27 games as interim head coach, replacing Rick Dudley. He finished with a 10–12–4–1 record before being replaced by Jacques Martin. During the 2005–06 NHL season, Torchetti was hired by Dave Taylor as interim head coach of the Los Angeles Kings. With a chance to clinch a playoff spot, he had a 5–7 record in the team's final 12 games and was not retained by the Kings, instead being replaced by Marc Crawford.
 Links: a. 1999–2000 NHL season b. 1999–2000 NHL season c. Florida Panthers d. 2005–06 NHL season

Ex Output:
a


Ex Input:
Question: What dietary items do the Inuit and Metis people have in common with one another? Passage:The year 2007 saw for the first time a racially-tailored Guide: the Food Guide for First Nations, Inuit and Métis people was born. For all other Canadians, the name evolved to Eating Well with Canada's Food Guide. The recognition of the multi-cultural nature of Canada meant that the food guide needed to balloon, to six pages in a fold-out pamphlet as opposed to the recto-verso poster format that had been used in days of yore. Obesity was recognised as a dietary problem. The Milk Products group became known as the Milk and Alternatives group, as "fortified soy beverage" was officially introduced to accommodate "non-milk drinkers". A guidance to reduce consumption of trans fats and replace saturated fats with unsaturated fats was identified. Instead of the cod-liver oil of days gone by, Canadians over 50 years of age were invited to consume vitamin D dietary supplements in order to normalise the method of ingestion by pharmaceutical pill. The choice of healthy foods was linked to the food label. A more "ethnically diverse" range of foods was depicted in order to reflect the European detonation of Canada. Nine age and sex groups were identified for specific recommendations but the LGBTQ lobby was still in its infancy and so no mention of them was made. "Three Advisory Groups provided guidance and advice throughout the revision process – the DRI Expert Advisory Committee, an Interdepartmental Working Group and the Food Guide Advisory Committee". An "extensive consultation with a range of stakeholders regarding the 1992 Food Guide" was duly noted. The Dietary Reference Intake (DRI) tool from the American Institute of Medicine was introduced to the Canadian taxpayer, as the NAFTA made its presence felt on the dinner table.
 Links: a. Inuit b. Métis c. North American Free Trade Agreement d. Obesity

Ex Output:

a