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: Pathology
[{'content': 'Most common tumor in lateral hemisphere of brain- \nSelect and explain. \nA. Astrocytoma, B. Meningioma, C. Ependymoma, D. Medulloblastoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Astrocytoma o Astrocytomas account for 80% of adult primary brain tumors and usually found in cerebral hemisphere.", 'role': 'assistant'}]