Which Statement About MHC Molecules Is True

Which statement about MHC molecules is true?

A) MHC proteins are cell membrane lipoproteins.
B) The major role of MHC proteins is to present antigens to B cell receptors.
C) Class I MHC proteins are found on the surface of every nucleated cell.
D) Class II MHC molecules are found on the surface of T cells.
E) Macrophages use MHC proteins complexed with CD4 or CD8 proteins to display antigens.