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': 'SI unit for measuring Blood Pressure is : \nSelect and explain. \nA. Torr, B. mmHg, C. kPa, D. Barr', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. KPa', 'role': 'assistant'}]