During the Persian War, Persia attacked , as punishment for helping the Aegean city-states. A. Peloponnese B. Sparta C. Athens

Athens

Explanation:

while en route to attack Athens, the Persian force was decisively defeated by the Athenians at the Battle of Marathon, ending Persian efforts for the time being. Darius then began to plan to completely conquer Greece but died in 486 BC and responsibility for the conquest passed to his son Xerxes.

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