Answer:
Option: A. The Inca created a politically unified empire, while the Aztecs granted more independence to conquered territories.
Explanation:
The Incas expanded and unified their territory after several conquests. Inca society rigidly organized, from the emperor, royal family, and the peasants. The Inca civilization tried to unify other conquered villages by establishing new rulers who were loyal to Incas and declaring their language Quechua as official. The Incas didn't want the people they conquered to have too much power.
The Aztec civilization tried to unify other conquered towns by conducting alliances or partnership to build their empire. They granted independence to the newly conquered territories. The new territories of the empire expected to pay tribute and taxes to the King. In most of the part, their local leaders were allowed to govern.