Studies of Graft Rejection Using Cells Labeled with Fluorescent Markers

Studies of graft rejection using cells labeled with fluorescent markers demonstrate that

A) any infiltration of a skin graft depends on MHC mismatch.
B) deep infiltration of a skin graft depends on MHC mismatch.
C) host antigen-presenting cells enter the skin graft before migrating to lymph nodes.
D) both any infiltration of a skin graft depends on MHC mismatch, and host antigen-presenting cells enter the skin graft before migrating to lymph nodes.
E) both any infiltration of a skin graft depends on MHC mismatch and host antigen-presenting cells enter the skin graft before migrating to lymph nodes.