The correct option is C Serum globulins
Globulins primarily are involved in defense mechanisms of the body. Globulins are a group of proteins in blood. They are made in your liver by your immune system.
Serum albumin, protein found in blood plasma that helps maintain the osmotic pressure between the blood vessels and tissues. Serum albumin accounts for 55 percent of the total protein in blood plasma.
A hemocyte is a cell that plays a role in the immune system of invertebrates. It is found within the hemolymph. Hemocytes are phagocytes of invertebrates.
Fibrinogen, a soluble protein that is produced by the liver and found in blood plasma. When tissue damage results in bleeding, fibrinogen is converted at the wound into fibrin by the action of thrombin, a clotting enzyme.