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: POSTAGE STAMPS 
Clue: "Oh, The Places He'll Go!" was USA Today's headline announcing the 2004 stamp honoring this artist & author

Answer: dr. seuss


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: INTERNATIONAL ORGANIZATIONS 
Clue: "Neutrality" & "Voluntary Service" are 2 of the 7 Fundamental Principles of this humanitarian org. founded in Europe

Answer:
the red cross