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: Ophthalmology
[{'content': 'Retinoblastoma arises from \nSelect and explain. \nA. Layer of rods & cones, B. Layer of bipolar cells, C. External limiting membrane, D. Any nucleated retinal layer', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Arises from immature retinal neural cells.', 'role': 'assistant'}]