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: BUMPED FROM THE COVER OF TIME 
Clue: A cover titled "Declining American Birthrate" was canceled in 1974 when this man was pardoned

Answer: richard m. nixon


Question: Category: PARTICLE PHYSICS 
Clue: To get an element's mass number, add its protons & these

Answer: neutrons


Question: Category: ACTRESSES' FIRST FILMS 
Clue: "Halloween"

Answer:
jamie lee curtis