Which of These Is the Most Accurate Way to Describe

Which of these is the most accurate way to describe the psychosocial impact of a peer group on adolescents?

A) Teenagers' psychological problems are fully formed before any interaction with peer groups, so these groups do not cause psychological problems.
B) Teenagers' psychological problems can cause problems when interacting with peers, but the problems do not come from peer interaction.
C) Teenagers' psychological problems come from interactions with peers rather than from other sources.
D) Teenagers' psychological problems can come from problems with peers and can cause problems with peers.