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: THE KOREAN WAR 
Clue: In bitter battles of 1951, Pork Chop was a hill & Heartbreak was one of these

A: ridge
****
Q: Category: OFFICIAL LANGUAGES 
Clue: Official language in common to the Central African Republic & Canada

A: french
****
Q: Category: MOVIE CO-STARS 
Clue: Meryl Streep & this actress were acclaimed for playing sisters in the 1996 film "Marvin's Room"

A:
diane keaton
****