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 differential diagnosis for cotton wool spots in fundus except: \nSelect and explain. \nA. AIDS, B. Diabetic retinopathy, C. Hypeension, D. Eales' disease", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. Eales' disease", 'role': 'assistant'}]