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.

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

Category: JACK LEMMON FILMS 
Clue: In "The China Syndrome", Lemmon played the executive of this type of plant
nuclear power plant

Category: BIBLICAL QUOTES 
Clue: In Genesis 17:4 God told him, "Thou shalt be a father of many nations"

abraham