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: HE WAS IN THAT? 
Clue: In 1969, in his pre-"Phantom" days, he played Cornelius Hackl in the film version of "Hello, Dolly!"

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

A: rook
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Q: Category: TOPS OF THE WORLD, MA! 
Clue: Mount McKinley

A:
united states
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