This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Deapth of anterior chamber in normal person is \nSelect and explain. \nA. 1-2 mm, B. 3-4 mm, C. 0.5-0.9 mm, D. 2 -3 mm', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Deapth of anterior chamber is 2.4 to 2 5 Refer khurana 6/e p 3', 'role': 'assistant'}]