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 name of this large port city on Western Europe's Schelde River literally means "at the wharf"

A: antwerp
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Q: Category: PASTIMES 
Clue: The FCC assigns call signs, like N8DNR, to use in this hobby

A: ham radio
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Q: Category: ORDINAL PEOPLE 
Clue: Harry Truman once "globally" broadened eleanor Roosevelt's title by calling her this

A:
first lady of the world
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