There are many types of white blood cells. The granulocytes which includes the neutrophils, basophils, eosinophils, and mast cells. There are agranulocytes like the lymphocytes, monocytes, macrophages, and dendritic cells.
A. The B cells label invaders for later destruction.
B. The macrophages consume pathogens.
C. The monocytes kill infected cells.
D. Helper T cells active B cells.
E. Neutrophils consume infected cells.
F. CD4+ T cells active cytotoxic T cells.