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: WORLD FLAGS
Clue: In 1996, to represent unity, Ethiopia put this 5-pointed star with mystical overtones on its flag
a pentacle

Category: SEE YOU IN COURT
Clue: Perhaps because no one could figure out what he'd been trying to do, Aaron Burr was acquitted of this in 1807
treason

Category: HI
Clue: Before the pineapple industry, the need for workers of this crop made Hawaii a melting pot
sugar cane