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 the following are true about incidence of retinoblastoma except: \nSelect and explain. \nA. Is the most common intraocular tumour of childhood, B. Occurs in 1 in 14000-34000 live bihs, C. No sex predisposition, D. More common in negroes than whites', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. More common in negroes than whites', 'role': 'assistant'}]