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': "Keratic precipitates are on which layer of cornea: \nSelect and explain. \nA. Epithelium, B. Endothelium, C. Stroma, D. Bowman's membrane", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Endothelium', 'role': 'assistant'}]