Mr. Welch understands that Tommy sometimes means to obey, but fails to control his behavior. Tommy loves to play with his peers,
but tends to annoy them with impulsive actions. Mr. Welch avoids using long time-outs at recess to discipline Tommy, because he wants Tommy to have a chance to be active. Mr. Welch helps Tommy by making rules extra clear, adjusting seating arrangements as needed, and sending home daily report cards. Which of the following disabilities best fits Tommy's characteristics?
