Answer:
The correct answer is A conquering the Aztecs.
Step-by-step explanation:
The Spanish explorer Hernan Cortes is known to have destroyed the Aztec empire, conquered Mexico and Cuba.
B. That would not be the correct answer because The Franciscan Missions were responsible for converging the Maya to Christianity.
C. It would not be the correct answer because Francisco Pizarro was responsible for the conquest of the Inca Empire.
D. Also this is not the correct answer sense Hernan Cortés was a spanish him self.