Answer:
Hydrostatic pressure of capillary blood
Step-by-step explanation:
Hydrostatic pressure refers to the pressure applied by the fluid flowing through the structure with confined boundaries on the walls of the structure.
In the given case, the hydrostatic pressure of the capillary blood is the pressure applied on the capillary walls by the blood as it flows through it.
When the blood moves through the capillary, the blood exit out of the pores due to this hydrostatic pressure and when the blood moves through these capillary, the pressure decreases as the blood is moved out that is from the arterial side to the venous.
Thus, the selected option is correct.