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
Which of the following is the SI unit for measuring blood pressure? 
Select and explain. 
A. Ton, B. kPa, C. Barr, D. mmHg
B: kPa
Answer: B: kPa 
Explanation: The applicable SI unit for the measurement of blood pressure is kilopascal (k Pa). Ref: Chemical Principles By Steven S. Zumdahl, 6th Edition, Page 106; SI Units for Clinical Measurement By Donald S. Young, Page 22