The Outcome of Organ Transplantation Improves When _____

The outcome of organ transplantation improves when _____.(Select all that apply.)

A) the patient has been transfused with blood sharing HLA allotypes with the transplanted organ
B) HLA-A,HLA-B and HLA-DR are matched
C) a thymectomy is performed at the time of transplantation
D) plasmapheresis is carried out before transplantation
E) immunosuppressive drugs are used to prevent the activation and proliferation of T cells.