Which of the Following Statements Regarding T-Cell Receptor Recognition of Antigen

Multiple Choice

Which of the following statements regarding T-cell receptor recognition of antigen is correct?

A) α:β T-cell receptors recognize antigen only as a peptide bound to an MHC molecule.
B) αβ T-cell receptors recognize antigens in their native form.
C) α:β T-cell receptors,like B-cell immunoglobulins,can recognize carbohydrate,lipid,and protein antigens.
D) Antigen processing occurs in extracellular spaces.
E) Like α:β T cells,γ:δ T cells are also restricted to the recognition of antigens presented by MHC molecules.