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': 'Flexner-Wintersteiner rossette is seen in? \nSelect and explain. \nA. Hepatoblastoma, B. Nephroblastoma, C. Neuroblastoma, D. Retinoblastoma', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Retinoblastoma", 'role': 'assistant'}]