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.

[EX Q]: Category: ANCIENT TIMES 
Clue: Julius Caesar said this region was divided into 3 parts; Augustus divided it into 4, including Aquitania
[EX A]: gaul

[EX Q]: Category: LET'S GET DOWN TO BUSINESS 
Clue: I can get it for you wholesale at this warehouse chain that merged with Price Club in 1993
[EX A]: costco

[EX Q]: Category: "FUN" WORDS 
Clue: On this type of railway, ascending & descending cars may counterbalance each other
[EX A]:
funicular