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 consistency, answers should be in all lower cased letters.
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Question: Category: STUPID ANSWERS 
Clue: It's the hall where the Declaration of Independence was signed

Answer: independence hall


Question: Category: KINGS NAMED GUSTAV 
Clue: Current king Carl XVI Gustaf met his wife at this event in Munich in 1972; she was an interpreter

Answer: summer olympics


Question: Category: HEALTH & BEAUTY 
Clue: This fibrous protein is injected to fill in wrinkles & acne scars as well as to plump lips

Answer:
collagen