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': 'C - wave in electroretinography is due to \nSelect and explain. \nA. Rods & cones, B. Muller cells, C. Bipolar cells, D. Retinal pigment epithelium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A wave - Rods\xa0& cones.\nB wave - muller cells & Bipolar cells.\nC wave - RPE.', 'role': 'assistant'}]