Direct Antigen Presentation Occurring During Allogeneic Graft Rejection Occurs When

Direct antigen presentation occurring during allogeneic graft rejection occurs when:

A) Donor APCs present antigen to the donor T cells
B) A recipient's T cells recognize donor cells as foreign
C) Donor antibodies bind to recipient cell surface molecules
D) A recipient's T cells recognize foreign antigen processed on the recipient's APCs