And we have this cancer cell that still has the MHC class One complex. Remember, not all cancer cells actually destroy the MHC Class One complex. Some of them still actually have them. And in this case, the cancer cell will now display a pathogenic, a foreign antigen on that MHC Class One complex. And now this is when the cytotoxicy T cell comes into play. It has the CDA Glycoprotein and the complementary T cell receptor that can basically bind onto this particular specific antigen and onto the Mhclass One complex.