This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Behavioral Disorders in Children, Subject name: Pediatrics
A 9-year-old child was brought to OPD for being restless annd hyperactive. His mother gives the history that his teacher complaints that he does not listen to the chapters taught at school and disturbs other students, he also shows less interest in playing. The likely diagnosis is: 
Select and explain. 
A. Cerebral palsy, B. ADHD, C. Delirium, D. Mania
B: ADHD
Answer: B: ADHD 
Explanation: Hyperactivity and sho attention span suggest a diagnosis of ADHD. Lack of concentration, impulsivity & hyperactivity are essential features of ADHD. Onset upto 12 years of age. Symptoms of ADHD: - Inattention - Hyperactivity - Impulsivity - Other symptoms- Destructive behavior, irritability, and aggression. Pharmacotherapy: Stimulants Non stimulants Methylphenidate, dexmethylphenidate Atomoxetine Amphetamines Bupropion Modafinil Clonidine, Guanfacine Venlafaxine