Which Statement About Selman's Stage Theory of Role Taking Is

Which statement about Selman's stage theory of role taking is TRUE?

A) Before adolescence, children are unable to acknowledge the existence of perspectives different from their own.
B) Children's progress through the stages is strongly related to their progress through Piaget's stages.
C) Although the theory describes stages, Selman believed that most individuals progress through these changes in a simultaneous fashion.
D) By approximately age 10, children can assess whether another person's view is typical of most people in their social group.