How did disease have a greater impact on the native cultures of the new world than war of commerce ?

Explanation:

Oct 22, 2013 · He was the first of the European invasion of North America and brought old world disease to the New World. He wrote in his diary that he thought the Native Americans would make good slaves

if i am correct the answer is going to be a) the federal program of reconstruction ended.

that is probably something for you to answer