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.

Category: WHO PLAYED 'EM ON TV? 
Clue: Army company clerk Radar O'Reilly
gary burghoff

Category: "Z" END 
Clue: In the Bible he was married to Ruth
boaz

Category: COLORS 
Clue: It's a creamy white color, or what white piano keys were once widely made of

ivory