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
[{'content': 'Hypoglycemic unawareness that occurs in diabetic patients when transfered from oral hypoglycemics to insulin, is due to - \nSelect and explain. \nA. Autonomic neuropathy, B. Insulin resistance, C. Lipodystrophy, D. Somogi phenomenon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]