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: BLACK AMERICAN HISTORY 
Clue: This organization was founded in 1944 after Tuskegee's president suggested pooling schools' money
united negro college fund

Category: PLACES FOR ANIMALS 
Clue: This word refers to extreme opposites or a type of bear
polar

Category: STARTS & ENDS WITH "A" 
Clue: You'll never rest on Everest if you've got this fear of heights

acrophobia