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: Medicine
[{'content': 'Most common Intracranial neoplasm in adults is - \nSelect and explain. \nA. Meningioma, B. Astrocytoma, C. Posterior fossa tumor, D. Ganglioneuroma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]