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: Pharmacology
[{'content': "In ERG 'A' waves corresponds to NOT RELATED-MEDICINE \nSelect and explain. \nA. Rods and cones, B. Nerve bundleftlayer, C. Aifact, D. Pigment epithelium", 'role': 'user'}, {'content': 'Answer: A \nExplanation: ERGA wave Activity of rods and conesB wave Bipolar cellC wave Retinal pigment epithelium(RPE)', 'role': 'assistant'}]