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: ANIMAL PLANET? 
Clue: In gymnastics, it's safe to vault over; its body is upholstered

A: horse
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Q: Category: BRAND NAMES 
Clue: This brand of petroleum jelly was selling a jar a minute in the U.S. by the 1880s, & it's still a favorite

A: vaseline
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Q: Category: LITERARY TRILOGIES 
Clue: "Number One" is actually the number two novel in a trilogy by this author of "U.S.A."

A:
john dos passos
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