Answer: D) blood levels of estradiol and testosterone
Vascular resistance is a natural phenomena in which the flow of blood in the blood vessel of human is restricted by the presence of the blood clot, deposition of fat or cholesterol in the blood vessel, increase in the viscosity of the blood, decrease in the length of the blood vessel and change in the size of the lumen or diameter of the blood vessel. This is also called as vasoconstriction.
The estradiol and testosterone are two sex hormones found in females and males respectively. The levels of these hormones in the blood is not responsible for the vascular resistance.
