TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: MOUNTAINS
Clue: Cotopaxi, the world's highest active volcano, rises just south of Quito, Ecuador in these mountains

SOLUTION: andes

PROBLEM: Category: LET'S GET IT "ON"!
Clue: A person of low social status, or a day laborer

SOLUTION: peon

PROBLEM: Category: DECEMBER 1st
Clue: 1959: 12 countries including the U.S. & the U.S.S.R. sign a treaty to keep this continent a scientific preserve

SOLUTION:
antarctica