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: CARTOON CHARACTERS 
Clue: This foe of Bugs Bunny is a marsupial

Answer: tasmanian devil


Question: Category: PULITZER PRIZE-WINNING BOOKS 
Clue: One of its title studies is Sen. Edmund Ross' 1868 vote against convicting President Andrew Johnson

Answer: profiles in courage


Question: Category: LITERARY ANIMALS 
Clue: In an 1877 novel, he tells us that he was originally called Darkie, & later, Old Crony

Answer:
black beauty