Answer:
C. He treated his subjects with fairness to create a strong empire.
Explanation:
Cyrus the Great stands out for his policy of concessions to the subject peoples, who in many cases do so willingly, and who were not required more than tribute, recruitment, and acceptance of a permanent garrison. He rejects the mass deportation practiced by his Assyrian and Babylonian ancestors, and occasionally by his Persian successors. With Cyrus, the movement is the opposite. Deported communities, such as Jews, were allowed to return to their land.
Likewise, the religious tolerance applied by Cyrus and his successors is very remarkable. Cyrus did not interfere in the religion of the conquered peoples because Mazdeism (official Persian religion since Darius I) promoted tolerance and respect for other creeds without imposing beliefs of any kind.
