An exchange theory of group formation suggests that

A) people like to "exchange" their groups for new ones every so often.
B) when people join groups,they exchange their self for the collective self.
C) once a change stabilizes it becomes an exchange.
D) groups form when members invest in the relationship by rewarding one another.

Exchange Theory

A social psychological and sociological perspective that explains social change and stability as a process of negotiated exchanges between parties.

Group Formation

The process by which people come together to form a group, involving stages of coming together, conflict, norm establishment, and performing a task.

Rewarding

Providing positive reinforcement or incentives for a particular behavior, encouraging its recurrence.