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': 'Muehrcke lines in nails are seen in \nSelect and explain. \nA. Nephrotic syndrome, B. Barer syndrome, C. Nail patella syndrome, D. Acute tubular necrosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Nephrotic syndrome", 'role': 'assistant'}]