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: Medicine
Pulse pressure is - 
Select and explain. 
A. 1/3 diastolic + 1/2 systolic B.P., B. 1/2 diastolic + 1/3 systolic B.P., C. Systolic – diastolic B.P., D. Diastolic + 1/2 systolic B.P.
C: Systolic – diastolic B.P.
Answer: C: Systolic – diastolic B.P. 
Explanation: None