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: MEDICINE & HISTORY
Clue: Montezuma's real revenge: a 1741 British expedition to conquer Mexico was devastated by this "colorful" disease
[A]: yellow fever

[Q]: Category: POTPOURRI
Clue: This chess piece that usually looks like part of a castle is sometimes called a castle
[A]: rook

[Q]: Category: SHE WAS IN THAT?
Clue: She was an extra in Charlie Chaplin's "City Lights" before she starred in "Platinum Blonde"
[A]:
jean harlow