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': "All of the following are small round blue cell tumours except \nSelect and explain. \nA. Ewing's sarcoma, B. Wilms tumour, C. Retinoblastoma, D. Rhabdomyosarcoma", 'role': 'user'}, {'content': "Answer: D \nExplanation: Small round blue cell tumours.\nNeuroblastoma.\nEwing's sarcoma.\nWilms tumour.\nMedulloblastoma.\nRetinoblastoma.\nLymphoma.\nPrimitive Neuroectodermal tumour.", 'role': 'assistant'}]