Which of the Following Is Most Likely to Occur When

Which of the following is most likely to occur when a tumor-suppressor gene is mutated,resulting in cancer?

A) The resulting tumor-suppressor protein will be overexpressed.
B) The resulting tumor-suppressor protein would further suppress cell proliferation.
C) The resulting tumor-suppressor protein would activate an oncogene.
D) The resulting tumor-suppressor protein would lose its ability to suppress cell proliferation.
E) None of the choices are possiblE.