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 simplicity, answers should be in all lower cased letters.
PROBLEM: Category: BORDERS 
Clue: Argentina's border with this country is 3,200 miles long, about the same as its coastline

SOLUTION: chile

PROBLEM: Category: ISLAND NATIONS 
Clue: It's where the mambo originated

SOLUTION: cuba

PROBLEM: Category: FANTASTIC CRITTERS 
Clue: Reaching up to 12 feet in length & almost 3,000 lbs. in weight, these creatures take up a lot of Arctic room

SOLUTION:
walruses