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': 'All of them are true except: \nSelect and explain. \nA. Retiniblastomas are hereditry 40%, nonhereditary 60%, B. Retiniblastomas are B/L 30%, U/L 70%, C. Retiniblastomas are familial 6%, non-familial 94%, D. All are true', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. All are true', 'role': 'assistant'}]