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: 4-F 
Clue: 2-word term for secretaries, bookkeepers, receptionists, etc.
office staff

Category: FISH, BIRD, OR MAMMAL 
Clue: The colobus
mammal

Category: EMPERORS 
Clue: Opposition led by Santa Anna limited the reign of this country's Agustin I to 10 months

mexico