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: AT RANDOM 
Clue: A cross between tennis & ping-pong, this sport was named for a dog, not a gherkin

A: pickle ball
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Q: Category: U.S. RIVERS 
Clue: The Falls of Saint Anthony stop this mighty river from being navigable north of St. Paul, Minnesota

A: the mississippi
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Q: Category: BRITISH HISTORY 
Clue: The last monarch to reside in the Tower of London, his mom was Mary, Queen of Scots

A:
james i
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