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.

[EX Q]: Category: ISLANDS 
Clue: 3,414-foot-high Carrantuohill west of Killarney is the highest peak on this island
[EX A]: ireland

[EX Q]: Category: "E" BAY 
Clue: Thinking green, biologist Ernst Haeckel coined this term for the way animals interact with the environment
[EX A]: ecology

[EX Q]: Category: FILMS OF THE '40S 
Clue: The title of this Boyer-Bergman film became a verb meaning to make someone doubt his sanity
[EX A]:
gaslight