Match the Description in Questions with the Lettered Item (A-I)related

Match the description in questions with the lettered item (A-I) related to antigen-presentation pathways.
-Site of peptide loading of class I MHC molecules

A) T cell receptor on CD4+ T cells
B) Endosomes
C) Endoplasmic reticulum
D) Invariant chain
E) Class II-associated invariant chain peptide (CLIP)
F) LMP-2 and LMP-7
G) Acidic proteases
H) T cell receptor on CD8+ T cells
I) HLA-DM