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': 'True about Macula Densa is/are: \nSelect and explain. \nA. Also known as Tubulo glomerular feedback., B. Macula densa senses change in NaCl concentration., C. For autoregulation of GFR., D. All of the above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Function of Macula Densa (Tubulo glomerular feedback): \n\nMacula densa senses change in NaCl concentration. \nFor autoregulation of GFR.', 'role': 'assistant'}]