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, 108of 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: What was the founding date of the team Foster played against in the 2001 FA Trophy final? Passage:After a short period in Scotland, Foster returned to English football with Doncaster Rovers where his opportunities were limited, though he had a spell with Ilkeston Town on loan. In 2001, he signed for Forest Green Rovers in the Conference National. He made well over 100 appearances for the club and had a spell as captain. He also appeared for Forest Green in the 2001 FA Trophy final at Villa Park but was on the losing side in a 1-0 defeat to Canvey Island. He was highly regarded amongst the supporters at The Lawn and many were sad to see him leave when he departed for Halifax Town in 2004. He made just under 100 league appearances for Halifax at The Shay before a move in 2007 to Oxford United.
Links: a. Villa Park b. Canvey Island F.C. c. Halifax Town A.F.C. d. The Shay

Ex Output:
b

Ex Input:
Question: What was the population of Las Vegas in 1979? Passage:Beginning in 1974, Bryant began to state that he was receiving revelations from Jesus. He claimed that "John the Beloved" had visited him as an angel and instructed him to form an "Order of the Ancients". In 1975 he was taken in vision to the City of Enoch, where AUB founder Joseph White Musser and Latter Day Saint movement founder Joseph Smith ordained him to the presidency of the church and the high priesthood. At this time, Bryant claimed to be the "One Mighty and Strong" prophesied of in the Doctrine and Covenants. In 1975, he founded a church as the Church of Christ Patriarchal, which later was renamed the Evangelical Church of Christ. In 1979, Bryant's group established a communal settlement at the Fair Haven Ranch near Las Vegas, Nevada. During his time as a leader of the group, Bryant had six wives and taught his sect about drug experimentation and heterosexual and homosexual group sex. According to sources, sect members had sexual relations during the group's temple ceremonies. In 1981, the group lost the Fair Haven Ranch when they were unable to keep up on mortgage payments. As a result, Bryant, five of his six wives, and some of the members of the group relocated to Marion County, Oregon, near Salem.
Links: a. Las Vegas b. Zion (Latter Day Saints) c. Revelation (Latter Day Saints) d. Latter Day Saint movement

Ex Output:
a