The answer is a. That was a founding principle of Karl Marx's communism, to get rid of social classes.
They enslaved their people and nobody ever fought back against them
It was a source of food and trade.
The answer is Bronislaw Manilowski. His method of observation was called
participant observation where you try to live and be part of a group to
participate in their activities for a certain period of time. The goal is get to know these people and
better understand their behavior as well as their customs and traditions.