Sharon Is Worried Because Her Son, Mike, Is Hyperactive, Has

Sharon is worried because her son, Mike, is hyperactive, has difficulty paying attention, and is often impulsive and uncontrollable. Mike behaves this way at home and at school. Sharon should consider getting Mike tested for

A) obsessive-compulsive disorder.
B) encopresis.
C) attention-deficit hyperactivity disorder.
D) organic brain dysfunction.