This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'impaired function of aquorporin results in \nSelect and explain. \nA. Nephrogenic DI, B. Liddle syndrome, C. Cystic fibrosis, D. Baer Syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ref : harrisons 21st ed', 'role': 'assistant'}]