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 consistency, answers should be in all lower cased letters.
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Question: Category: PARADISE LOST 
Clue: Completes the famous line from Book I, "Better to reign in hell, than..."

Answer: serve in heaven


Question: Category: BUSINESS & INDUSTRY 
Clue: This stagecoach company owned the Pony Express during the last few months of its existence

Answer: wells fargo


Question: Category: COUNTRY COOKING 
Clue: It's the traditional meat in souvlaki, a popular Greek dish

Answer:
lamb