TASK DEFINITION: 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.
PROBLEM: Category: EUROPEAN CAPITALS 
Clue: This capital lies on the Attica Plain surrounded by mountains including Parnes & Hymettus

SOLUTION: athens

PROBLEM: Category: THE DIRECTOR 
Clue: Born in this city in 1895, J. Edgar Hoover graduated from its National University law school in 1917

SOLUTION: washington

PROBLEM: Category: SOUNDS KINDA "IFF"-Y 
Clue: The top county cop

SOLUTION:
the sheriff