This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidneys and Body Fluids, Subject name: Physiology
[{'content': 'Where does ADH not act ? \nSelect and explain. \nA. PCT, B. Collecting duct,, C. Collectingtubules, D. DCT', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is. 'a' i.e., PCT HormoneSite of action in kidneyEffectsAldosteroneDistal tubule (late) and collecting duct| NaCl & water reabsorptions, K+ secretionADHDistal tubule and collecting duct| Water reabsorptionAngiotensin IIProximal tubule, thick ascending limb of loop of Henle, distal tubule, collecting duct| NaCl & water reabsoiptionANPDistal tubule, collecting duct| NaCl reabsorption", 'role': 'assistant'}]