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': 'The earliest clinical feature of diabetic nephropathy is: \nSelect and explain. \nA. Microalbuminuria, B. Increased serum creatinine, C. Nephritic syndrome, D. Hematuria', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Microalbuminuria): The first clinically detectable sign of Diabetic Nephropathy is Microalbuminuria.', 'role': 'assistant'}]