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: GEOLOGISTS 
Clue: In 1957 Sir Vivian Fuchs led the first crossing of this continent; it took 99 days

Answer: antarctica


Question: Category: HOTELS 
Clue: We'll tell you "diplomatically" that this L.A. hotel was the home of the Coconut Grove nightclub

Answer: the ambassador hotel


Question: Category: PRESIDENTIAL PASTIMES 
Clue: Even when pushing 300 pounds, this 27th president enjoyed playing golf & tennis

Answer:
taft