<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:To study the flow of blood in the systemic circulation, partially occlusive stents are placed in the pulmonary trunk of a physiological system while the pressure in the right atrium is monitored. A graph where the right atrial pressure is a function of venous return is plotted. Assuming all circulatory nerve reflexes are absent in the system, at what point on the diagram shown below will the arterial pressure be closest to the venous pressure?? A: Point I, B: Point II, C: Point III, D: Point IV, E: Point V,  <response>: This is a physiology question asking about the relationship between venous return, cardiac output, and arterial pressure in the systemic circulation. The key points are:- Partially occlusive stents are placed in the pulmonary trunk to create a variable resistance, allowing measurement of pressure changes with changing flow. - Right atrial pressure is monitored as a measure of venous return.- A venous return curve can be generated by plotting right atrial pressure vs. flow.- Without reflexes, arterial pressure will equal venous pressure when flow is zero.So we need to identify the point on the graph where flow approaches zero, which is when arterial and venous pressures will be most similar.C: Point III 