A - The Greeks were able to stop a Persian invasion, and the Persian Empire stopped trying to conquer Greece.
Explanation:
As a result of the war with Persia, the Greeks defended their freedom, freed their Minor Asian and island ‘brothers’ from the Persian rule, and established their dominance in the Aegean Sea and the Black Sea straits. Persia was unable to resume offensive operations against the Greeks. In 449, after a new defeat of Persia by the Greeks, a peace was made near the Cypriot city of Salamis. The rampant expansion of the Achaemenid dynasty was halted for the first time, and the ancient Greek state entered the era of its highest cultural achievements.