The guardians of a school-aged child state that they run in circles in the classroom, interrupt others’ conversations at home, and cannot focus when doing homework. The nurse should recognize that these behaviors can be indicative of which of the following disorders?

Choice A reason: Dysgraphia is a learning disorder that affects writing ability and does not explain hyperactivity, impulsivity, or difficulty sustaining attention. Choice B reason: Autism spectrum disorder involves deficits in social communication and restricted, repetitive behaviors, but the described behaviors are more consistent with hyperactivity and inattention rather than core ASD features. Choice C reason: Stereotypic movement disorder involves repetitive, nonfunctional motor behaviors but does not account for inattention, impulsivity, or difficulty focusing on tasks. Choice D reason: ADHD is characterized by hyperactivity, impulsivity, and inattention. Running in circles, interrupting others, and difficulty focusing on homework are classic manifestations of this disorder.