Which of the following changes would you expect to find after administering a vasodilator drug that caused a 50% decrease in afferent arteriolar resistance and no change in arterial pressure?
A、Increased renal blood flow, increased GFR, and increased peritubular capillary hydrostatic pressure
B、Decreased renal blood flow, decreased GFR, and decreased peritubular capillary hydrostatic pressure
C、Decreased renal blood flow, decreased GFR, and increased peritubular capillary hydrostatic pressure
D、Increased renal blood flow, increased GFR, and no change in peritubular capillary hydrostatic pressure
E、Increased renal blood flow, increased GFR, and decreased peritubular capillary hydrostatic pressure