b) leukocytesLuekocytes (WBCs) release antibodies as part of the immune response to disease or infectionNOT A- b/c erythrocytes (RBCs) are the oxygen transporting component of bloodNOT C- b/c plasma makes up the majority of the blood volume, which does not change as a result of infectionNOT D- b/c platelets are the blood-clotting component