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: Surgery
[{'content': 'During general dental treatment local anesthesia is feasible in? \nSelect and explain. \nA. Child, B. Adult, C. Mentally retarded, D. Physically challenged', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]