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
Cataract is caused by all except: 
Select and explain. 
A. Ultraviolet radiation, B. MRI, C. Infrared radiation, D. Microwave radiation
B: MRI
Answer: B: MRI 
Explanation: B i.e. MRI