How did diseases such as smallpox play a role in the fall of the Aztec Empire?

A.The diseases weakened the Aztecs, making it easier for the Maya and their allies to overthrow the Aztec Empire.

B.The diseases infected many Aztecs and weakened their society, making them more vulnerable to the conquistadores.

C.The diseases weakened the conquistadores and made it much more difficult for them to conquer the Aztecs.

D.The diseases weakened the Maya and made it much more difficult for them to help the conquistadores defeat the Aztecs.