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: CUBA 
Clue: In the news in 1961, this bay in the Cuban province of Las Villas is also called Bahia de los Cochinos
bay of pigs

Category: "OVER" & "OUT" 
Clue: The remote part of Australia
the outback

Category: HATS 
Clue: Slang for a construction worker

a hardhat