This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatrics, environment and nutrition, Subject name: Pathology
[{'content': 'Metastasis in neuroblastoma goes to - \nSelect and explain. \nA. Liver, B. Lung, C. Bone, D. Bone marrow', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Lung metastasis at initial diagnosis of neuroblastoma is associated with MYCN amplification and elevated LDH levels. Although lung metastasis at diagnosis was not independently predictive of outcome in this analysis, it remains a useful prognostic marker of an unorable outcome.', 'role': 'assistant'}]