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': 'Salt losing nephropathy - \nSelect and explain. \nA. Interstitial nephritis, B. Lupus nephritis, C. Amyloidosis, D. Post-streptococcal GN', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]