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: SIGNS & SYMBOLS 
Clue: Symbols of mystery, they're the mysterious doubles of the people who cast them

A: shadows
****
Q: Category: CITIES' LEADING NEWSPAPERS 
Clue: Charlotte, North Carolina

A:
the observer
****