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: How many months/years passed between the signing of the Adams-Onis Treaty and the acquisition of Florida? Passage:Born in Braintree, Massachusetts, Adams spent much of his youth in Europe, where his father served as a diplomat. After returning to the United States, Adams established a successful legal practice in Boston. In 1794, President George Washington appointed Adams as the U.S. ambassador to the Netherlands, and Adams would serve in high-ranking diplomatic posts until 1801, when Thomas Jefferson took office as president. Federalist leaders in Massachusetts arranged for Adams's election to the United States Senate in 1802, but Adams broke with the Federalist Party over foreign policy and was denied re-election. In 1809, Adams was appointed as the U.S. ambassador to Russia by President James Madison, a member of the Democratic-Republican Party. Adams held diplomatic posts for the duration of Madison's presidency, and he served as part of the American delegation that negotiated an end to the War of 1812. In 1817, newly-elected President James Monroe selected Adams as his Secretary of State. In that role, Adams negotiated the Adams–Onís Treaty, which provided for the American acquisition of Florida. He also helped formulate the Monroe Doctrine, which became a key tenet of U.S. foreign policy.
 Links: a. George Washington b. Braintree, Massachusetts c. Adams–Onís Treaty d. Florida

Output: c


Input: Consider Input: Question: Is the team that Duke City lost to in the 2007 WFTDA WEstern Regional Tournament quarterfinals still active? Passage:Duke City's all-star travel team, the Mueñcas Muertas, represented the league at the first WFTDA Championships in 2006, where they finished 19th out of 20 teams. At the 2007 WFTDA Western Regional Tournament Duke City won their opening game 110-82 over the Rocky Mountain Rollergirls, but then lost to Tucson Roller Derby in the quarterfinals, 166-41. At the 2008 Western Regional, Duke City opened with a victory over Pikes Peak Derby Dames and then upset the defending WFTDA Champion Kansas City Roller Warriors 132-117, automatically qualifying for Championships. Duke City then lost to Bay Area in the semifinals and Rat City Rollergirls in the third place game to finish Westerns in fourth place. At Championships in Portland, Duke City lost their opening round game to Gotham Girls Roller Derby 182-25. At the 2009 Western Regional, Duke City lost the fifth place game to Bay Area 105-103 to finish in sixth place. As the eighth seed at the 2009 Western Playoff, Duke City lost their opening games to Tucson and Denver, before falling to Sacred City Derby Girls to finish in tenth place.
 Links: a. Tucson Roller Derby b. Denver Roller Derby c. WFTDA Western Regional Tournament d. Sacramento Roller Derby

Output: a


Input: Consider Input: Question: What is the smallest solar system object that can be seen with medium-size binoculars? Passage:A number of solar system objects that are mostly to completely invisible to the human eye are reasonably detectable with medium-size binoculars, including larger craters on the Moon; the dim outer planets Uranus and Neptune; the inner "minor planets" Ceres, Vesta and Pallas; Saturn's largest moon Titan; and the Galilean moons of Jupiter. Although visible unaided in pollution-free skies, Uranus and Vesta require binoculars for easy detection. 10×50 binoculars are limited to an apparent magnitude of +9.5 to +11 depending on sky conditions and observer experience. Asteroids like Interamnia, Davida, Europa and, unless under exceptional conditions Hygiea, are too faint to be seen with commonly sold binoculars. Likewise too faint to be seen with most binoculars are the planetary moons except the Galileans and Titan, and the dwarf planets Pluto and Eris. Other difficult binocular targets include the phases of Venus and the rings of Saturn. Only binoculars with very high magnification, 20x or higher, are capable of discerning Saturn's rings to a recognizable extent. High-power binoculars can sometimes show one or two cloud belts on the disk of Jupiter if optics and observing conditions are sufficiently good.
 Links: a. Apparent magnitude b. Dwarf planet c. Moon d. Venus


Output: c