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: WE GET LETTERS 
Clue: This cable television network uses an exclamation point in its name
e!

Category: DONKEYS & ELEPHANTS 
Clue: Or would you rather be one of these? (a cross between a male donkey & a female horse)
mule

Category: FOREIGN HOLIDAY 
Clue: It celebrates its independence from Colombia on November 3

panama