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: Pediatrics
[{'content': "A malignant tumor of childhood, that metastasizes to bones most often, is - \nSelect and explain. \nA. Wilm's tumor, B. Neuroblastoma, C. Adrenal gland tumors, D. Granulosa cell tumor of ovary", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Neuroblastoma `Metastasis present in 60-70% of children at time of diagnosis are usually to the skeleton, characteristically to the facial bones and the skull and to the bone marrow and nodes'", 'role': 'assistant'}]