Answer:
B. attention deficit hyperactivity disorder
Explanation:
Attention deficit hyperactivity disorder is a chronic neurobiological disorder characterized by inattention, restlessness and impulsivity. These signs must manifest themselves in childhood, but they can last a lifetime if not properly recognized and treated. Children with this disorder are easily distracted, do not stand still, and exhibit poor impulse control.
Egon has these symptoms, so his parents were suspicious that he could have this disorder. This justifies Egon's parents' desire to take him to a doctor to be evaluated for attention deficit hyperactivity disorder.