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': 'Gene involved in Retinoblastoma \nSelect and explain. \nA. 12P13, B. 13P14, C. 12Q13, D. 13Q14', 'role': 'user'}, {'content': "Answer: D \nExplanation: Retinoblastoma - 13Q14\nWilm's tumor - 11P13", 'role': 'assistant'}]