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': 'Cause of Cataract \nSelect and explain. \nA. Infrared, B. Microwaves, C. UV rays, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A, C > B i.e. Infrared, UV rays > Microwaves', 'role': 'assistant'}]