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': 'Medulloblastoma most common metastasis is to ? \nSelect and explain. \nA. Lung, B. CNS, C. Liver, D. Spleen', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., CNS o Medullablastoma spread through CSF and frequently metastasizes to different locations in the brain and spine. o Extraneural metastasis to the rest of the body is rare.", 'role': 'assistant'}]