A Patient Who Received a Bone Marrow Transplant for Treatment

A patient who received a bone marrow transplant for treatment of leukemia develops a skin rash 10 days after the transplant. The nurse recognizes this reaction as an indication that the

A) donor T cells are attacking the patient's skin cells.
B) patient's antibodies are rejecting the donor bone marrow.
C) patient is experiencing a delayed hypersensitivity reaction.
D) patient will need treatment to prevent hyperacute rejection.