Out of the following given choices;
A. Further antibody attack.
B. Phagocytosis
C. Helper T cells
D. B cells.
E. None of the above.
The answer is B. Phagocytises is the engulfment of a particle from the external environment, by a cell, for ingestion. This is especially critical for the function of macrophages, which are immune cells. These macrophages have receptors for the Fc region of the immunoglobulin on their cell membrane surface.