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': 'SNB angle describes the relationship of the \nSelect and explain. \nA. Maxilla to the cranial base, B. Mandible to the cranial base, C. Maxilla to the mandible, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]