The Spanish Defeat of the Aztecs and the Incas Was

The Spanish defeat of the Aztecs and the Incas was

A) surprising considering the Spanish army was much smaller than those commanded by the indigenous emperors.
B) inevitable given that the natives believed the Spaniards were gods.
C) hard to understand given the superior power of the Indian bows and arrows.
D) understandable because the Spaniards had a larger army.