This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous and retina, Subject name: Ophthalmology
[{'content': 'Cotton wool spots are commonly seen in A/E - \nSelect and explain. \nA. HIV, B. DM, C. Hypeension, D. CMV', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cotton wool spots are fluffy white lesions and represent the areas of infarcts in the nerve fibre layer. These occur due to ischaemia caused by capillary obliterations in severe hypeensive retinopathy. Due to their cotton wool feathery appearance they are also termed as soft exudates (misnomer) Ref;A.K.Khurana; 6th edition; Page no: 274', 'role': 'assistant'}]