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.

Input: Consider Input: Question: In which country did Hue attend college? Passage:Robert Hues (1553 – 24 May 1632) was an English mathematician and geographer. He attended St. Mary Hall at Oxford, and graduated in 1578. Hues became interested in geography and mathematics, and studied navigation at a school set up by Walter Raleigh. During a trip to Newfoundland, he made observations which caused him to doubt the accepted published values for variations of the compass. Between 1586 and 1588, Hues travelled with Thomas Cavendish on a circumnavigation of the globe, performing astronomical observations and taking the latitudes of places they visited. Beginning in August 1591, Hues and Cavendish again set out on another circumnavigation of the globe. During the voyage, Hues made astronomical observations in the South Atlantic, and continued his observations of the variation of the compass at various latitudes and at the Equator. Cavendish died on the journey in 1592, and Hues returned to England the following year.
 Links: a. St Mary Hall, Oxford b. Navigation c. Circumnavigation d. Equator

Output: a


Input: Consider Input: Question: Who is the CEO of the airline that scheduled flights to several Florida cities and Detroit? Passage:In later years, Continental Express continued to serve the airport with nonstop regional jet flights to Cleveland while Continental Connection was operating nonstop turboprop flights to Albany, NY; however, both services ended in 2005. Spirit Airlines scheduled flights to several Florida cities and Detroit, before moving to LaGuardia Airport in 2001; in May 2008 the airline resumed service to Fort Lauderdale from MacArthur only to drop it soon after. Delta Express, which had nonstops to Orlando and Fort Lauderdale, dropped MacArthur Airport in 2003 after a decline in traffic. Delta Connection regional jet service to Atlanta flown by Atlantic Southeast Airlines (ASA) on behalf of Delta Air Lines ended on May 1, 2008 following a mid-April announcement that Delta and Northwest Airlines were planning to merge – a move that led to changes for the merged airline.
 Links: a. Detroit b. Atlanta c. Spirit Airlines d. Fort Lauderdale, Florida

Output: c


Input: Consider Input: Question: Which of the performers at the 1962 World's Fair was the oldest? Passage:When Seattle decided to try to put itself on the map with the futuristic Century 21 Exposition — the 1962 World's Fair — high culture was on the agenda, as well as popular entertainment along the lines of "Gracie Hansen's Paradise International" and "Les Poupees de Paris," an adult-themed puppet show, both of which aspired more to a Gay Nineties naughtiness than to anything artistic. The Opera House on the grounds of the center was rebuilt for the occasion (and would be rebuilt again 2001–2003 as McCaw Hall); performers at the fair included Igor Stravinsky, Benny Goodman, and Victor Borge; the Seattle Symphony brought in opera singers and staged Aida. The Fine Arts Pavilion (later the Exhibition Hall) managed to bring in works by Titian, Van Dyck, and Monet, as well as more contemporary pieces by Jackson Pollock, Georgia O'Keeffe, and Alexander Calder and by Pacific Northwest artists Tobey, Callahan, and Graves. There was also a significant exhibition of Asian art and Northwest Coast Indian art. The exposition also commissioned a massive abstract mural by Horiuchi, which still forms the backdrop to the stage at Seattle Center's Mural Amphitheater.
 Links: a. Igor Stravinsky b. Georgia O'Keeffe c. Georgia O'Keeffe d. Titian


Output: a