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: Physiology
[{'content': 'Proximal renal tubular acidosis has all the following features except \nSelect and explain. \nA. Hypokalemia, B. Bicarbonate wasting, C. Nephrocalcinosis, D. Hyperchloremia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Nephrocalcinosis usually occurs in distal renal tubular acidosis', 'role': 'assistant'}]