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: Surgery
Diabetic gangrene is due to A/E 
Select and explain. 
A. Vasospasm, B. Atherosclerosis, C. Peripheral neuritis, D. Increased sugar in blood
A: Vasospasm
Answer: A: Vasospasm 
Explanation: None