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 simplicity, answers should be in all lower cased letters.

[Q]: Category: THE ELEMENTS 
Clue: Most fluorescent lights are filled with a combination of argon & this element, Kr
[A]: krypton


[Q]: Category: ALL ABOUT PRESIDENTS 
Clue: I might worry about hanging around with him--he was nicknamed the "Hangman of Buffalo"
[A]: grover cleveland


[Q]: Category: LATIN AMERICAN HISTORY 
Clue: In 1921 the United States paid this country $25 million for its loss of Panama 18 years earlier
[A]:
colombia