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': 'The first permanent tooth to erupt in the oral cavity\nis the: \nSelect and explain. \nA. Mandibular central incisor, B. Mandibular first molar, C. Maxillary central incisor, D. Maxillary first molar', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]