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': 'Commonest type of intracranial tumour IN ADULTS is: \nSelect and explain. \nA. Astrocytoma, B. Medulloblastoma, C. Neurofibroma, D. Secondaries', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Astrocytoma', 'role': 'assistant'}]