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.

[EX Q]: Category: GEOLOGISTS 
Clue: In 1957 Sir Vivian Fuchs led the first crossing of this continent; it took 99 days
[EX A]: antarctica

[EX Q]: Category: WORLD GEOGRAPHY 
Clue: The name of this large port city on Western Europe's Schelde River literally means "at the wharf"
[EX A]: antwerp

[EX Q]: Category: ARCTIC ANIMALS 
Clue: This long-haired ruminant is named for the strong odor it emits
[EX A]:
musk ox