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
Cause of Cataract 
Select and explain. 
A. Infrared, B. Microwaves, C. UV rays, D. All
D: All
Answer: D: All 
Explanation: A, C > B i.e. Infrared, UV rays > Microwaves