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.

Q: Category: ACADEMY AWARD FIRSTS 
Clue: On March 5, 1936 screenwriter Dudley Nichols did this; it didn't happen again until an actor did it April 15, 1971

A: refused his oscar
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Q: Category: U.S. PRESIDENTS 
Clue: The last names of 8 different presidents end with this 3-letter combination

A: son
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Q: Category: KNOWLEDGE BY THE NUMBERS 
Clue: Number of males who served as British PM in the 1990s plus Oscars won by Tom Hanks plus protons in a helium nucleus

A:
6
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