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': 'Diagnosis of all is made by fluorescein angiographyexcept? \nSelect and explain. \nA. Diabetes retinopathy, B. Hypeensive retinopathy, C. Central serous retinopathy, D. Choroidal neovascularization', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Hypeensive retinopathy", 'role': 'assistant'}]