T Cells Recognize Antigen When the Antigen

Multiple Choice

T cells recognize antigen when the antigen

A) forms a complex with membrane-bound MHC molecules on another host-derived cell
B) is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum
C) is presented on the surface of a B cell on membrane-bound immunoglobulins
D) forms a complex with membrane-bound MHC molecules on the T cell
E) bears epitopes derived from proteins,carbohydrates,and lipids.