Answer:
3 - Religious Movement
Explanation:
The Second Great Awakening was a sort of religious revival during the early 19th century in the US. The Second Great Awakening caused a number of reform movements through emotional preaching and revivals.
Biological warfare was effective against the Inca because there immune system's were not used to that type of diseases that Europeans brought over. There are very susceptible to disease and were wiped out quickly
