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 consistency, answers should be in all lower cased letters.

Category: WHO'S THE MRS.? 
Clue: Mrs. James Carville
matalin

Category: ONE-WORD BEST PICTURE OSCAR WINNERS 
Clue: A middle name in Latin
amadeus

Category: LIKE WHAT YOU'VE DONE WITH THE PLACE 
Clue: What flexibility you have with this type of lighting, named for what the lights move along

track lighting