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': "'Bull's eye' lesion in macular region is seen in: \nSelect and explain. \nA. Progressive cone dystrophy, B. Choroquine maculopathy, C. Both of the above, D. None of the above", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Both of the above', 'role': 'assistant'}]