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': 'Incidence of congenital glaucoma is: \nSelect and explain. \nA. 1 in 1000 bihs, B. 1 in 5000 bihs, C. 1 in 10,000 bihs, D. 1 in 34,000 bihs', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. 1 in 10,000 bihs', 'role': 'assistant'}]