Diagnosis of Sam's Behavior

The DSM-5 categorizes various psychological disorders based on their symptoms, causes, and effects on functioning. One of these disorders is characterized by persistent patterns of inattention and/or hyperactivity-impulsivity that interfere with functioning or development. A 10-year-old boy, Sam, has been reported by his teachers to frequently daydream, fail to pay attention to details, and consistently disrupt his classmates due to impulsive behavior. These behaviors have led to significant challenges in his academic performance and relationships with peers. Which of the following best describes Sam's potential psychological disorder?