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: AMERICAN NOVELISTS 
Clue: "What is moral is what you feel good after and what is immoral is what you feel bad after", he wrote in 1932

Answer: ernest hemingway


Question: Category: MYSTERY NOVELS 
Clue: The first line of dialogue in this 1930 novel is spoken to secretary Effie Perine, "Yes, sweetheart?"

Answer: the maltese falcon


Question: Category: U.S. PRESIDENTS 
Clue: He's the only president since 1900 whose last name contains more vowels than consonants

Answer:
barack obama