Which of the following policies most directly enabled the Romans to govern an extensive and diverse empire?

While religion played a role in unifying the empire, the Romans generally practiced religious tolerance and did not require conquered peoples to abandon their beliefs. Instead, they often incorporated local deities into their pantheon, which did not directly support governance or administration of the empire.

This statement inaccurately portrays Roman policy. While some groups were resettled, the Roman Empire primarily focused on maintaining local populations in their territories to ensure stability and economic productivity. Forcing migrations would have destabilized regions and made governance more challenging.

Tax exemptions and trade freedoms were not standard policies for all conquered peoples. Instead, Rome typically sought to extract resources from its territories. While some regions may have received certain privileges, this was not the primary means of governance throughout the empire.