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: TO PROTECT
Clue: This "service" is best known for protecting the president, but also investigates forgery

Answer: the secret service

Question: Category: CONFUSE US
Clue: Affluent means wealthy: effluent refers to waste in this state of matter

Answer: liquid

Question: Category: BURLAP TO CHARM
Clue: To keep it white, the head of this cruciferous vegetable is tied up in its leaves when it's young to keep the sun off

Answer:
cauliflower