You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).
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Question: concept: Lex Luthor  answers:  ['Michael Rosenbaum']

Answer: who plays young lex luthor in smallville?


Question: concept: John F Kennedy  answers:  ['Lee Harvey Oswald']

Answer: who shot and killed president john f kennedy?


Question: concept: Zoroastrianism  answers:  ['The Zend-Avesta, The Gathas, and the Doctrine of Zarathustra']

Answer:
what are the zoroastrian scriptures called?