A patient whose kidneys have failed may receive a kidney transplant. In a kidney transplant, a healthy kidney is removed from another person and placed into the patient’s body. At times, the donated kidney cells are destroyed by the patient’s body. In this primary immune response, T-lymphocytes attach to antigens on the donated kidney cells and become activated. The statements below show the later stages of the primary immune response. 1 Activated T-lymphocyte secretes cytokines. 2 B-lymphocytes differentiate into plasma cells and make antibodies. 3 T-killer cells bind to antigens on donor kidney cells. 4 T-killer cells release toxins that destroy the donor kidney cells. 5 T-lymphocytes multiply by mitosis and differentiate into T-killer cells. Which sequence correctly shows how donor kidney cells are destroyed?
- A$1 \rightarrow 5 \rightarrow 2 \rightarrow 3$
- B$1 \rightarrow 5 \rightarrow 3 \rightarrow 4$
- C$3 \rightarrow 1 \rightarrow 5 \rightarrow 2$
- D$3 \rightarrow 5 \rightarrow 4 \rightarrow 1$