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: ANCIENT GREEKS 
Clue: This actor of the 6th century B.C. is credited with introducing the use of masks on stage
thespis

Category: U.S. BODIES OF WATER 
Clue: Give yourself a hand if you know that this group of New York lakes includes Otisco, Owasco & Cayuga
the finger lakes

Category: THE PRISONER 
Clue: In 1519 this leader of the Aztecs was taken prisoner without resistance

montezuma