The parents of a school-age child ask the nurse if she thinks that their child has attention deficit hyperactivity disorder (ADHD). Which statement regarding the child's behavior at school is most indicative of ADHD?
Correct Answer: D
Rationale: The most indicative behavior of ADHD is the inability to sit still and constant movement, known as hyperactivity. This behavior is a hallmark symptom of ADHD, making option D the correct choice. Options A, B, and C do not specifically reflect the characteristic hyperactivity associated with ADHD, making them less indicative of the disorder. While option B suggests impulsivity, it is not as specific to ADHD as the hyperactivity described in option D.