The correct answer is B. as the empire expanded, those with political and religious power became leaders and ruled with other city-states.
In the context of the Maya civilization, power became more centralized as certain city-states grew in influence, wealth, and political power, often due to their successful trade and military conquests. Leaders who held both political and religious authority emerged, and they established networks and alliances with other city-states, facilitating greater centralization of power among the Maya.