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: AROUND THE HOUSE 
Clue: A silent butler is used to collect these during or after a meal

Answer: crumbs


Question: Category: WEIGHTS & MEASURES 
Clue: Number of teaspoons in a tablespoon

Answer: 3


Question: Category: WEAPONS 
Clue: Technically, your AK-47s & M16s aren't machine guns, they're automatic these

Answer:
rifles