Question

which of the following is not an action of antibodies with the antigen?
a neutralize bacterial toxins by coating them
b make a cluster of antigen - antibody complexes
c make the antigen more susceptible to phagocytosis
d all apply.

Explanation:

Antibodies can neutralize bacterial toxins by coating them (neutralization), form antigen - antibody complexes (agglutination), and make antigens more susceptible to phagocytosis (opsonization).

Answer:

D. All apply.