This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Circulation: Arterial Pressure Regulation - Role of Kidney, Subject name: Physiology
Pulsepressure is affected by? 
Select and explain. 
A. Stroke volume, B. Compliance of aorta, C. Ejection fraction, D. All
D: All
Answer: D: All 
Explanation: ANSWER: (D) AllREF: Guytons physiology 11th edition page173Pulse Pressure is most easily defined as being the amount of pressure required to create the feeling of a pulse."Two major factors affect the pulse pressure; (1) the stroke volume output of the heart and (2) the compliance (total distensibility) of the arterial tree. A third, less important factor is the character of ejection from the heart during systole"