This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'ICG angiography is primarily indicated in \nSelect and explain. \nA. Minimal classical CNV, B. Occult CNV, C. Angioid streaks with CNV, D. Polypoidal choroidal vasculopathy', 'role': 'user'}, {'content': "Answer: B \nExplanation: We recommend ICG with some enthusiasm for identifying feeder vessels in age-related macular degeneration, choroidal neovascular membranes, chronic central serous retinopathy, multiple evanescent white dot syndrome, vasculitis, acute multifocal placoid pigment epitheliopathy, Vogt-Koyanagi-Harada syndrome Ref ganong's review of medical physiology 25e 643", 'role': 'assistant'}]