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: Radiology
[{'content': 'Radiological findings in meningioma are all except: \nSelect and explain. \nA. Calcification, B. Vascular markings, C. Vascular markings, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. None of the above', 'role': 'assistant'}]