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': 'Most common extra - axial intracranial tumor \nSelect and explain. \nA. Schwannoma, B. Lipoma, C. Meningioma, D. Arachnoid cyst', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Meningioma is the most common extra - Axial intracranial tumor.\nMost common intra - Axial intracranial tumor is Glioma.', 'role': 'assistant'}]