which viral immunoevasins interfere with the processing of antigens that bind to MHC class I molecules?

Of the following, which is NOT a mechanism by which viral immunoevasins interfere with the processing of antigens that bind to MHC class I molecules? a. inhibit cytotoxic T cell recognition by blocking the MHC class I cleft at the cell surface b. promote the retention of MHC class I molecules in the endoplasmic reticulum c. prevent peptide binding by inhibiting the upregulation of HLA-DM , block peptide entry into the endoplasmic reticulum by disturbing the TAP transporter facilitate dislocation and intracellular degradation of coll surface