TASK DEFINITION: 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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: FRANKS 
Clue: The Atreides family, exiled on Arrakis, starred in the "Chronicles of Dune" by this sci-fi author

SOLUTION: frank herbert

PROBLEM: Category: EVERYTHING FROM C TO D 
Clue: In math: raised to the third power

SOLUTION: cubed

PROBLEM: Category: WHO'S AFRAID OF 
Clue: Whether it passes too slowly or too quickly, chronophobia is a fear of this

SOLUTION:
time