According to erikson's theory of socioemotional development, establishing is the key challenge of adolescence.

Identity is the fact of being who or what a person or thing is. The process of identity can be creative or destructive. Adolescence is one of the most rapid phases of human development (physical and psychological).

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.