This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'A 40 years old female patient presented with recurrent headaches. MRI showed an extra-axial, dural-based and enhancing lesion. The most likely diagnosis is NOT RELATED-RADIOLOGY \nSelect and explain. \nA. Meningioma, B. Glioma, C. Schwannoma, D. Pituitary adenoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .', 'role': 'assistant'}]