An adult says, "When I was a child, I took medication because I couldn't follow my teachers' directions. I stopped taking it when I was about 13. I still have trouble getting organized, which causes difficulty at my job." Which disorder is most likely?

A) Stress intolerance disorder
B) Generalized anxiety disorder (GAD)
C) Borderline personality disorder
D) Adult attention deficit hyperactivity disorder (ADHD)

Adult ADHD is usually diagnosed in early life and treated until adolescence. Treatment is often stopped because professionals think the disorder resolves itself because the hyperactive impulsive behaviors may diminish; the inattentive and disorganized behaviors tend to persist, however. Stress intolerance disorder is not found in the DSM-5. The scenario description is inconsistent with generalized anxiety disorder and borderline personality disorder.