The answer is C. As new colonists and explorers discovered the Americas, they also brought disease. This heavily impacted the American Indians as a majority of their population suffered from epidemics.
Archaeologists have excavated different regions with findings of very early agriculture.
Look it up ok , but I think THE ANSWER IS A
The population decreases daily with all there murders
the most widely accepted theory among scientist is that the last place humans migrated was to America