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
Development of Diabetic retinopathy depends on 
Select and explain. 
A. Intensity of disease, B. Age of onset, C. Duration of disease, D. Any of the above
D: Any of the above
Answer: D: Any of the above 
Explanation: D i.e. Any of the above Though duration of disease is the most impoant and best predictor Q of diabetic retinopathy, all the options mentioned here are, infact risk factors for DR, so, its best to go for Option D.