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 deepest point between the anterior nasal spine and superior prosthion is \nSelect and explain. \nA. Subspinale, B. Supranasale, C. Infra spinale, D. gnathion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]