This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: CNS Tumors, Subject name: Pathology
[{'content': 'M/c glial tumor- \nSelect and explain. \nA. Ependymomas, B. Astrocytoma, C. Meningioma, D. Neurofibroma', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. '2' i.e., Astrocytoma M/c glial tumor is Astrocytoma BUTTERFLY GLIOBLASTOMA: Glioblastoma multiforme (GBM)- fast-growing glioma, develops from star-shaped glial cells (astrocytes and oligodendrocytes). GBM- grade IV astrocytoma. WHOLE BRAIN RADIATION USE FOR IT,AS IT IS HIGHLY FATAL.", 'role': 'assistant'}]