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 highest and most anterior part on the alveolar process in the median plane between the mandibular central incisors: \nSelect and explain. \nA. Prosthion, B. Inferior prosthion, C. Subspinale, D. Supramentale', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]