<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A parent-teacher conference is called to discuss the behavior of a 9-year-old boy. According to the boys teacher, he has become progressively more disruptive during class. He is performing poorly in school and has trouble focusing. He is destructive to classroom property, tore a classmates art project, and takes other childrens lunches regularly. He is avoided by his classmates. His mother reports that her son can sometimes be difficult. Recently he placed a rubber band around the cats tail, resulting in gangrene. What is the most likely diagnosis?? A: Conduct disorder, B: Oppositional defiant disorder, C: Antisocial personality disorder, D: Attention deficit disorder, E: Separation anxiety disorder,  <response>: Based on the description in the question stem, the boy is exhibiting disruptive and destructive behaviors at school, has trouble focusing, and is avoided by his classmates. He also exhibits cruel behavior towards animals at home. This pattern of behavior problems across settings points to a likely diagnosis of conduct disorder, which involves a repetitive and persistent pattern of behavior that violates the basic rights of others or major age-appropriate societal norms. The behaviors described are severe enough to warrant a diagnosis of conduct disorder rather than just oppositional defiant disorder. The boy is too young for a diagnosis of antisocial personality disorder, which cannot be made before age 18. There are some symptoms of inattention described, but the predominant issues are behavior problems rather than just inattention, making conduct disorder more likely than ADHD. Separation anxiety disorder involves excessive anxiety around separation from caregivers and does not fit the symptoms described.A: Conduct disorder 