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: Physiology
[{'content': 'Maximum potassium reabsorption occurs in? \nSelect and explain. \nA. Proximal convoluted tubule, B. Distal convoluted tubule, C. Coical collecting duct, D. Medullary collecting duct', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is'a'i.e., Proximal convoluted tubule[Rl Guyton 12n/e p. 334)Most of the solutes and water are maximally absorbed in proximal tubule :-60-70% of Na* is reabsorbed along with 6O-70% of Cl-60-70% of K+ is reabsorbed", 'role': 'assistant'}]