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': 'The power of Cornea is \nSelect and explain. \nA. +15 to +17D, B. +14 to +42D, C. +43 to +45D, D. +60D', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The power of Cornea +43 —\xa0+45D\nThe power of Lens is +15 — +17D\nThe power of the Eye : +60D', 'role': 'assistant'}]