How did power become centralized across independent Mayan city-states?(1 point)
Responses
a. Mayan people became discontented with the king and created their own central government.
b. As the empire expanded, those with political and religious power became leaders and ruled with other city-states.
c. As the empire expanded, city-states fell due to increasing government expenses.
d. As city-states fell, centralized Spanish authority took over.