Brian often interrupts his teacher while she is speaking and frequently forgets to complete his homework assignments. He also has difficulty taking turns in playground games with classmates. Brian most clearly exhibits symptoms of DID. OCD. PTSD. ADHD.

Brian most clearly exhibits symptoms of ADHD

Explanation:

ADHD stands for Attention Deficit Hyperactivity Disorder is a medical condition where the affected person develops different brain developmental process that leads to poor attention, restlessness, impatient or impulsive etc.

This type of symptoms are mainly found in children and it may lasts upto adulthood.

This type of behviour affect the child in school and at home.

To cure this disease, the affected person should consult the doctor, apply different therapy, medicines are also used to cure this disease.