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': "A 50 years old male patient travels alone in a remote village of Rajasthan was not on any food or water for the past 24 hours. Urine osmolality is 1150 mOsm/Kg. The major site of water reabsorption is \nSelect and explain. \nA. Proximal tubule, B. Henle's loop, C. Distal tubule, D. Medullary collecting duct", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer: a) Proximal tubuleWater Transport along the NephronSegmentPercentage of Filtrate ReabsorbedMechanism of Water ReabsorptionHormones That Regulate Water PermeabilityProximal tubule67%PassiveNoneLoop of Henle15%Descending thin limbonly; passiveNoneDistal tubule0%No water reabsorptionNoneLate distal tubule and collecting duct~8%-17%PassiveADH, ANP, BNP*Atrial and brain natriuretic peptides inhibit antidiuretic hormone-stimulated water permeability', 'role': 'assistant'}]