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: INTERNATIONAL "C"UISINE 
Clue: French chefs turn this freshwater crustacean into mousse d'ecrevisse
crawfish

Category: "E" GADS! 
Clue: In 1986 they became the first siblings inducted into the Rock & Roll Hall of Fame
the everly brothers

Category: CIVICS CLASS 
Clue: In the most common form of U.S. city government, a council is balanced by this executive

mayor