Which of the following blood vessels would have the slowest blood flow?

select one:
a. a dilated vessel with high blood pressure
b. a constricted vessel with high blood pressure
c. a dilated vessel with low blood pressure
d. a constricted vessel with low blood pressure

I believe the answer is D (a constricted vessel with low blood pressure) because the blood vessel is constricted (which is part of why the blood vessel has a slow blood flow). It is also because of the low blood presure (the hormones regulate to stimulate teh precapillary sphincters to tighten, temporarily reduce the total volume of the blood vessel system, and also raising the pressure).