This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroradiology, Subject name: Radiology
[{'content': "Mount Fuji sign is a feature of \nSelect and explain. \nA. Fahr's disease, B. Acute bleed, C. Chronic bleed, D. Tension pneumocephalous", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mount Fuji sign refers to the presence of gas (pneumocephalus) between the tips of the frontal lobes with a heaped-up appearance giving the appearance of Mount Fuji or M like appearance.', 'role': 'assistant'}]