Refer to the Figure

Refer to the figure. The figure is most likely illustrating

A) a normal cell (A) and an attached class I MHC protein (B) .
B) part of an adaptive immune response in which a B lymphocyte (A) is presenting a portion of a virus (B) on its cell surface.
C) part of an adaptive immune system in which a cytotoxic T cell (A) is shown with an attached CD8 protein (B) .
D) part of an innate immune response in which a macrophage (A) is presenting an antigen to a T-helper cell (B) .
E) part of an innate immune response in which a phagocyte (A) is phagocytosing a foreign cell such as a bacterial or yeast cell (B) .