Answer:
A. COAGULATION
Explanation:
Hemostasis is stopping bleeding. To prevent or keep blood in the blood vessels due to damage of the vessels.
Three steps are important in hemostasis;
1. Vasoconstriction : which is the contraction of the smooth muscles of the blood vessels reducing the amount of blood flow to the area of damage and thereby blood loss.
2. Platelet Plug Formation: this is the function of platelet in the blood. It attaches to the damaged endothelium and form a plug.
3. Coagulation/ Clotting : this is the release of clotting factors to the surface of the damaged vessel.
Fibrin is a major component of the clotting factor.
So therefore, coagulation is a process in hemostasis. Formation of platelet plug is a stage also and not the formation of platelet in the blood.
