Social rules differ from one society to another justify

Our society consists of different people with different religious, linguistic, traditional, ethnic and cultural backgrounds and to respect such differences is also a part of the social rule. If a person does not respect such differences, then the society will not accept such person as its member. Norms provide order in society. ... Human beings need norms to guide and direct their behavior, to provide order and predictability in social relationships and to make sense of and understanding of each other's actions

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.