This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Heart, Circulation, and Blood, Subject name: Physiology
[{'content': 'Which of the following is true regarding autoregulation: \nSelect and explain. \nA. Vary with change in pressure, B. Maintains the blood flow, C. Well developed in skin, D. Regulated by local metabolites', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Maintains the blood flowThe capacity of tissues to regulate their own blood supply is known as autoregulation. This capacity is developed in kidney but is also seen in mesentery, skeletal muscles, brain, liver and myocardium.', 'role': 'assistant'}]