Trevor Has Limited Ability to Engage in Nonverbal Communicative Behaviors

Multiple Choice

Trevor has limited ability to engage in nonverbal communicative behaviors, and his language tends to be imitative. He pays little attention to the people around him, preferring to sit and play intensely in activities requiring repetitive motions. Trevor is displaying qualities that are characteristic of

A) bipolar disorder.
B) a learning disability.
C) mental retardation.
D) autism.