This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'A 7 year old child comes to your clinic with ulcers with indurated margins in the oral cavity and fever with crusting of lips. The probable treatment plan is? \nSelect and explain. \nA. Prescribe broad spectrum antibiotic and mouthwash, B. Symptomatic treatment and observation, C. Clean the mouth with gentle mouthwash, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]