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': '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.\n\nPower of schematic eye →+ 58D\nPower of reduced eye →+ 60D', 'role': 'assistant'}]