This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diabetes Mellitus, Subject name: Medicine
Retinopathy is most likely to be seen with 
Select and explain. 
A. IDDM of 5 years duration, B. NIDDM of 8 years duration, C. Gestational diabetes, D. Juvenile diabetes staed before pubey
A: IDDM of 5 years duration
Answer: A: IDDM of 5 years duration 
Explanation: Complication of Retinopathy/nephropathy takes 5 years to develop in type 1 diabetes. Complication of Retinopathy/nephropathy takes 15-20 years to develop in type 2 diabetes.