Antigen presentation$$is the process by which antigen$-$presenting cells $($APCs$)$ process and display antigens on their surface in the form of peptide fragments bound to$$Major Histocompatibility Complex $($MHC$)$molecules$.$ This is crucial for activating the adaptive immune response, including$$T cells. Arrange the following steps of antigen presentation via$$MHC Class I$$in the correct order:$$

Group of answer choices

$3$

$[$ Choose $]$Peptides are transported into the ER by the TAP complex.$$Intracellular proteins are degraded into peptides by the proteasome.$$Peptides bind to MHC Class I molecules in the endoplasmic reticulum $($ER$).$The peptide$-$MHC Class I complex is transported to the cell surface.$$The peptide$-$MHC Class I complex is recognized by CD$8+$ T cells.$$

$1$

$[$ Choose $]$Peptides are transported into the ER by the TAP complex.$$Intracellular proteins are degraded into peptides by the proteasome.$$Peptides bind to MHC Class I molecules in the endoplasmic reticulum $($ER$).$The peptide$-$MHC Class I complex is transported to the cell surface.$$The peptide$-$MHC Class I complex is recognized by CD$8+$ T cells.$$

$4$

$[$ Choose $]$Peptides are transported into the ER by the TAP complex.$$Intracellular proteins are degraded into peptides by the proteasome.$$Peptides bind to MHC Class I molecules in the endoplasmic reticulum $($ER$).$The peptide$-$MHC Class I complex is transported to the cell surface.$$The peptide$-$MHC Class I complex is recognized by CD$8+$ T cells.$$

$2$

$[$ Choose $]$Peptides are transported into the ER by the TAP complex.$$Intracellular proteins are degraded into peptides by the proteasome.$$Peptides bind to MHC Class I molecules in the endoplasmic reticulum $($ER$).$The peptide$-$MHC Class I complex is transported to the cell surface.$$The peptide$-$MHC Class I complex is recognized by CD$8+$ T cells.$$

$5$

$[$ Choose $]$Peptides are transported into the ER by the TAP complex.$$Intracellular proteins are degraded into peptides by the proteasome.$$Peptides bind to MHC Class I molecules in the endoplasmic reticulum $($ER$).$The peptide$-$MHC Class I complex is transported to the cell surface.$$The peptide$-$MHC Class I complex is recognized by CD$8+$ T cells.$$