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: "SEASON" 
Clue: Paul Scofield won an Oscar as the "year-round" Thomas More in this 1966 film

Answer: a man for all seasons


Question: Category: PEN NAMES 
Clue: He came out of "The Jungle" to write juvenile novels as Clarke Fitch

Answer: upton sinclair


Question: Category: THE LABORS OF HERCULES 
Clue: For his labor of cleaning the Augean Stables, Hercules diverted 1 or 2 of these

Answer:
rivers