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.

[Q]: Category: WORLD GEOGRAPHY 
Clue: The world's highest city of over 1 million people sits at about 12,000 feet in these mountains
[A]: the andes


[Q]: Category: CAPITAL CITIES 
Clue: Home to the oldest cathedral & the oldest university in the Americas, this capital was founded in 1496
[A]: santo domingo


[Q]: Category: U.S. COMMERCE 
Clue: Huntington, considered the USA's busiest inland port & largely shipping coal, is on this river
[A]:
the ohio river