Answer:
Antigen-presenting cells
Explanation:
Class II MHC molecules are present on the surface of all the antigen-presenting cells. Some of the examples of antigen-presenting cells (APCs) are dendritic cells, macrophages and B cells.
The Class -II MHC molecules are formed in the endoplasmic reticulum of these cells followed by binding of antigen peptide fragments to these class II MHC molecules. The antigen-MHC II complexes are then inserted into the plasma membrane of these antigen-presenting cells.
