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': 'True about primary angle closure glaucoma: \nSelect and explain. \nA. More common in females, B. Shallow anterior chamber in a tank, C. Shoer diameter of cornea is a predisposing factor, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. All', 'role': 'assistant'}]