Kiyoshi's Second Grade Teacher Is Concerned

Kiyoshi's second grade teacher is concerned.Kiyoshi often blurts out answers before questions are finished,has trouble waiting his turn,interrupts other students,fidgets in his seat,has trouble playing or working quietly,and talks too much.She suspects he may suffer from

A) hyperactive-impulsive type attention deficit hyperactivity disorder.
B) inattentive type attention deficit hyperactivity disorder.
C) combined type attention deficit hyperactivity disorder.
D) Post-traumatic stress disorder.