A Patient with Melanoma Receives Three Types of Therapy: Surgery,radiation,and

A patient with melanoma receives three types of therapy: surgery,radiation,and interferon.Which of these represents something the immune system uses against cancer as well?

A) Radiation -- a class of lymphocytes uses powerful electromagnetic radiation to attack "altered self" cells.
B) Interferon -- T_H cells and NK cells secrete interferon in response to tumor cells.
C) Interferon -- NK cells insert interferon into the membranes of tumor cells,creating large pores that burst the cells.
D) Interferon -- In complexes bound with MHC proteins,the interferons indicate the presence of altered tissue to B cells.