This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Physiology
[{'content': 'Most potent stimulus for renin release is - \nSelect and explain. \nA. Sympathetic stimulation, B. Decreased NaCl in DCT, C. Prostacycline, D. Hypotension', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Hypotension o Hypotension causes reduced renal perfusion pressure - most powerful stimulus for renin release.", 'role': 'assistant'}]