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: Anatomy
[{'content': 'Treatment in a patient suffering from Diffuse macular retinopathy is \nSelect and explain. \nA. Macular ablation, B. Pan retinal photocoagulation, C. Grid pattern photocoagulation of macula, D. Pan macular photocoagulation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: .', 'role': 'assistant'}]