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': 'Bones of the cranial base include which of the following? \nSelect and explain. \nA. Maxilla, mandible, and cranial vault, B. Ethmoid, sphenoid, and occipital, C. Palatal, nasal, and zygoma, D. Frontal and parietal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The cranial base includes, from anterior to posterior, the ethmoid, sphenoid, and occipital bones.', 'role': 'assistant'}]