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': 'Child coming with proptosis, multiple skeletal limb secondaries, sutural separation is having \nSelect and explain. \nA. Neuroblastoma, B. Medulloblastoma, C. Retinoblastoma, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Proptosia, bony metastasis and sutural separation (due to skull metastasis) suggest the diagnosis of neuroblastoma.', 'role': 'assistant'}]