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: FRENCH NOVELISTS 
Clue: A relative of Henri Bergson's wife, he used Bergson's mystical concepts of time in his most famous work
[A]: marcel proust


[Q]: Category: FAMOUS ACTORS 
Clue: Ironically, he lost the leading role in the 1960 play "The Best Man" because he didn't look presidential
[A]: ronald reagan


[Q]: Category: CIVIL WAR SITES 
Clue: Of the 6 Civil War-related national military parks, the northernmost & southernmost are in these 2 states
[A]:
pennsylvania & mississippi