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: HOW GREAT THOU ART 
Clue: This "mama's boy" answered the art critics in his 1890 book "The Gentle Art of Making Enemies"

A: whistler
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Q: Category: BROADWAY DEBUTS 
Clue: In 2006, in her first big project since giving birth to twins, she starred on Broadway in "Three Days of Rain"

A: julia roberts
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Q: Category: CLASSICAL MUSIC 
Clue: This Italian composer known for his Concerti Grossi, Opus 6, played violin, not mandolin

A:
corelli
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