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.

[EX Q]: Category: THE SENATE 
Clue: The 2 astronauts who went on to become U.S. Senators
[EX A]: john glenn

[EX Q]: Category: PAINTERS 
Clue: His grandson was the cinematographer of "Barbarella" & "The Spy Who Loved Me"
[EX A]: pierre auguste renoir

[EX Q]: Category: COMPOSERS 
Clue: One of this Russian's best-known works is the fiendishly difficult Piano Concerto No. 3 of 1909
[EX A]:
sergei rachmaninoff