Which of the Following Describes the Sequence of Events Involved

Which of the following describes the sequence of events involved in the processing of peptides that will be presented as antigen with MHC class II?

A) protease activity →removal of CLIP from MHC class II →binding of peptide to MHC class II →endocytosis →plasma membrane
B) endocytosis →protease activity →removal of CLIP from MHC class II →binding of peptide to MHC class II →plasma membrane
C) removal of CLIP from MHC class II →binding of peptide to MHC class II →protease activity →endocytosis →plasma membrane
D) binding of peptide to MHC class II →endocytosis →removal of CLIP from MHC class II →protease activity →plasma membrane
E) plasma membrane →endocytosis →protease activity →removal of CLIP from MHC class II →binding of peptide to MHC class II.