Answer:
B. Nomadic ways of life.
Explanation:
With a food surplus groups of nomads were able to settle in one location instead of moving from location to location following herds of animals or slash-and-burn farming.
Social tensions were similar to ethnic and religious. Immigrants wanted to go westwards and establish new states, and locals wanted to get land and become politicians in new states, which caused problems. For example, Mormons were religiously prosecuted constantly and had to go as far as Utah in the end. Political tensions were party related and slavery related. They grew out of ideas on whether new states should be slave states or not.
I believe that would be Vladmir Lenin
