This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Optics and refraction, Subject name: Ophthalmology
[{'content': 'Power of a reduced eye is normally - \nSelect and explain. \nA. 20 -D, B. 35 - D, C. 18 - D, D. 58 - D', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The most appropriate answer here is 58D. Power of schematic eye -+58D Power of reduced eye -+60D Reference: Optics of human eye 4th edition page15', 'role': 'assistant'}]