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: Who owns the tallest building in Dubai? Passage:Dubai, the largest city in the United Arab Emirates, is home to many modern high-rises, 108 of which stand taller than . The tallest building in Dubai is the Burj Khalifa, which rises and contains 163 floors. The tower has stood as both the tallest building in the world and the tallest man-made structure of any kind in the world since its completion in January 2010. The second-tallest building in Dubai is the Marina 101, which also stands as the world's second tallest residential skyscraper. The skyscrapers of Dubai are, for the most part, clustered in three different locations. The land along E 11 Road was the first to develop, followed by the Dubai Marina neighborhood and the Business Bay district.
 Links: a. List of tallest buildings b. Burj Khalifa c. Burj Khalifa d. Burj Khalifa

Ex Output:
b


Ex Input:
Question: Which national team that pull out of the Pacific Nations Cup has a longer history? Passage:The 2009 Pacific Nations Cup is a rugby union tournament held between five national sides on the Pacific Rim: Fiji, Japan, Samoa, Tonga and the Junior All Blacks. The New Zealand Māori team that won the tournament last year will no longer take part in this competition because of a decision taken by the New Zealand Rugby Union. Australia A has also decided to pull out due to a similar decision. The inaugural competition was held in 2006. This year the tournament will begin on June 12 and ends on July 3, 2009 and most of the matches will be hosted by Fiji. The awarding of the key international tournament to the Fiji Rugby Union represents a further boost to the continued development of rugby in the region. The two opening round matches will be played outside of Fiji with Samoa hosting the Junior All Blacks in Apia and Tonga entertaining the Fijians in Nukuʻalofa the following day before the tournament moves to Fiji for a 17-day festival of international rugby spread across three match venues: the ANZ National Stadium (Suva), Churchill Park (Lautoka) and Lawaqa Park (Sigatoka).
 Links: a. Australia A national rugby union team b. Māori All Blacks c. Australia A national rugby union team d. Australia A national rugby union team

Ex Output:
b


Ex Input:
Question: How many people live in the town where Thomson was born? Passage:Thomson was born in Dundee, and attended Brechin High School. He made his debut for Scotland in June 1992, in a first-class game against Ireland. Later in 1992, and also in 1994, Thomson trialled with English counties, playing Second XI Championship games for Leicestershire and Durham, respectively. At the 1997 ICC Trophy in Malaysia, he played in five of Scotland's nine matches, taking six wickets. His best figures, 3/37 from eight overs, came against Papua New Guinea. Thomson was a regular for Scotland throughout the late 1990s and into the early 2000s, although he missed out on both the team's appearance at the 1999 World Cup and the 2001 ICC Trophy. His final matches for the national team came in the 2003 National Cricket League, against Derbyshire and Lancashire.
 Links: a. 1997 ICC Trophy b. Pro40 c. Dundee d. Brechin High School

Ex Output:

c