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.
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Question: Category: BESTSELLERS 
Clue: "Gettysburg", cowritten by this former House speaker, imagines a Confederate victory at Gettysburg

Answer: newt gingrich


Question: Category: LADIES' LOCKER ROOM 
Clue: Born in Mannheim, Germany in 1969, she's one of only 5 tennis players in history to win a Grand Slam

Answer: steffi graf


Question: Category: GREEK MYTHOLOGY 
Clue: This narrow strait is so named because Phrixus' sister Helle drowned in it

Answer:
hellespont