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: ENT
[{'content': 'Which is a Pneumatic Bone? \nSelect and explain. \nA. Maxillary, B. Parietal, C. Temporal, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pneumatic bones are one which contain large air spaces lined by epithelium e.g.: maxilla, sphenoid, ethmoid, Frontal etc. They make the skull light in weight, help in resonance of voice, and act as air conditioning chambers for the inspired air.', 'role': 'assistant'}]