<prompt> A 12-year-old boy presents with disruptive behaviour at school, aggression towards teachers and truancy. He was recently suspended from the school for destruction of school propey. Which of the following diagnosis best suits his presentation?Oppositional defiant disorderConduct disorderAttention deficit hyperactivity disorderAutism spectrum disorder  <response>: Conduct disorder in children is characterised by behaviours which could cause harm to self or others or propey. Cruelty to animals is also a feature. There is frequent violation of the rights of others and rule breaking behaviours. The behaviours are persistent and not occasional.Ref: Kaplan Sadocks Synopsis of Psychiatry: Benjamin J Sadock, M.D., Harold I. Kaplan, Virginia A Sadock, M.D, Edition: 10, Page 1218 