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': 'Cotton wool spots are commonly seen in all except – \nSelect and explain. \nA. HIV, B. DM, C. Hypertension, D. CMV', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cotton wool spots occur rarely (not commonly) in CMV retinitis.', 'role': 'assistant'}]