Final answer:
The conquest of the Aztec and Incan empires by small groups of Spaniards can be attributed to smallpox and other diseases, advanced weaponry, and alliances with indigenous groups. Correct option is correct option is A,B and C.
Step-by-step explanation:
The conquest of the Aztec and Incan empires by small groups of Spaniards can be attributed to several factors:
Smallpox and other diseases: The introduction of diseases by the Spaniards, such as smallpox, weakened the indigenous populations. The Aztecs and Incas had no immunity to these diseases and suffered large-scale deaths, which further destabilized their societies.Advanced weaponry: The Spaniards had a significant military advantage over the indigenous forces due to their advanced weaponry, including guns and cannons. This superior firepower allowed the Spaniards to overcome the numerical advantage of the Aztec and Incan armies.Alliances with indigenous groups: The Spaniards formed alliances with indigenous groups who were opposed to the Aztecs and Incas. These groups saw the Spaniards as an opportunity to rebel against their oppressive rulers and gain independence.