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': 'Which one of the following tumors shows calci-fication on CT scan? \nSelect and explain. \nA. Ependymoma, B. Meduloblastoma, C. Meningioma, D. CNS lymphoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Meningioma', 'role': 'assistant'}]