Answer:
C. by having him act as a puppet of Cortés's authority.
Step-by-step explanation:
Hernan Cortes was a Spanish conquistador who had been credited with leading to the Spanish conquest of the Aztec Empire. The conquest to formally attain the Aztec empire led to the is not solely based on the enmity or disparity between the Spaniards and the indigenous people of Aztec. The defeat of the empire was possible due to the collusion of the Spanish with some groups of the tribals themselves, thus leading to the entry of the foreigners to their land.
The overthrow of the monarch Montezuma was possible only with the help of the native woman/ mistress of Cortes, Dona Marina who acted as her interpreter to the native people. When they once got into the kingdom of the Aztec empire, Cortes made the monarch Montezuma his puppet and ruled the kingdom through their king. This way, he planned to overthrow the whole monarchy and made himself ruler of the Aztec kingdom in Tenochtitlán.