Question: A 15-year-old girl is evaluated due to behavioral concerns during the past year. The patient often stays out past curfew. She is failing multiple classes at school and blames her grades on being unfairly penalized for handing in assignments late. A few months ago, the patient was sent to the principal's office after refusing to put away her cell phone during a test. When the principal confiscated her phone, she argued with and impulsively cursed at him, resulting in suspension from school. On examination, the patient is irritable and sarcastic, frequently interrupting her mother. Which of the following is the most likely diagnosis? Need Assignment Help? A. Conduct disorder B. Intermittent explosive disorder C. Normal adolescent behavior D. Oppositional defiant disorder