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
Hypoglycemic unawareness that occurs in diabetic patients when transfered from oral hypoglycemics to insulin, is due to - 
Select and explain. 
A. Autonomic neuropathy, B. Insulin resistance, C. Lipodystrophy, D. Somogi phenomenon
A: Autonomic neuropathy
Answer: A: Autonomic neuropathy 
Explanation: None