This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Circulation, Subject name: Physiology
[{'content': 'Highest impulse discharge frequency from baroreceptors will be at what blood pressure? \nSelect and explain. \nA. 60 mm Hg, B. 100 mm Hg, C. 150 mm Hg, D. 180 mm Hg', 'role': 'user'}, {'content': 'Answer: D \nExplanation: - The range for baroreceptor function is 60-180 mm Hg. - The normal set point for baroreceptors is 100 mm Hg. - At 100 mm Hg, there is a steady impulse discharge from baroreceptors to the VMC. - When BP increases --> impulse discharge increases; when BP decreases --> impulse discharge decreases. - Thus, impulse discharge will be maximum at 180 mm Hg.', 'role': 'assistant'}]