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.
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Question: Category: I GOT 3 As, MOM! 
Clue: In legend, this pure knight found the Holy Grail

Answer: galahad


Question: Category: "O" YOU ANIMAL! 
Clue: It "coughs" out sediment by clapping its shell shut

Answer: oyster


Question: Category: BODY OF LITERATURE 
Clue: Alan Brown's "Audrey Hepburn's ____"

Answer:
neck