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
[{'content': 'Which is the most common complication in type 2 diabetes mellitus? \nSelect and explain. \nA. Neuropathy, B. Nephropathy, C. Retinopathy, D. Coronary aery disease', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The most common complication in type 2 diabetes mellitus is neuropathy affecting 50% of patients. Distal symmetric polyneuropathy leading to loss of function in stocking glove pattern is the leading presentation of diabetic neuropathy.', 'role': 'assistant'}]