The theory that social arrangements typically benefit some groups at the expense of others is called

The theory that social arrangements typically benefit some groups at the expense of others is called Conflict theory

Explanation:

This theory was initiated by Karl Marx who stated the consequences that the society faced was based on the conflicts between the classes. This theory gives the competition between the different classes and the struggle faced by the groups.

Thus conflicts leads to one group dominating over the other groups. In the society some social arrangements are made for one group and the other groups are also benefited from these. This is one major advantage of Conflict theory

thomas jefferson

explanation: