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: Medicine
The DCCT (Diabetes Control & Complication Trial) provided definitive proof that reduction in chronic hyperglycemia helps to improve: 
Select and explain. 
A. Micro vascular complications of Type I DM, B. Macro vascular complications of Type I DM, C. Micro vascular complications of Type II DM, D. Macro vascular complications of Type II DM
A: Micro vascular complications of Type I DM
Answer: A: Micro vascular complications of Type I DM 
Explanation: None