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': 'Which is true about measurement of BP with syphgnomonmeter versus intraaerial pressure measurements: \nSelect and explain. \nA. Less than intravascular pressure, B. More than intravascular pressure, C. Equal to intravascular pressure, D. Depends upon blood flow', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. More than intravascular pressure', 'role': 'assistant'}]