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': 'Active resorption of sodium ion occurs in: March 2008 \nSelect and explain. \nA. Ascending loop of henle, B. Early distal tubule, C. Proximal tubule, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D: All of the above About 65% of the filtered electrolytes are absorbed in PCT actively Thin ascending loop of Henle: Passive diffusion of sodium Thick ascending loop of Henle: Active transpoation of sodium Early distal tubule: Similar propeies as that of thick ascending loop of Henle', 'role': 'assistant'}]