Which of the Following Statements About Adaptive Immune Responses to Cancers

Which of the following statements about adaptive immune responses to cancers is true?

A) T cell responses only occur when the cancers harbor oncogenic viruses.
B) Antibody responses only occur when the cancer is harboring an oncogenic virus.
C) Both T cell and B cell responses often occur in patents with common forms of cancer,but those immune responses are usually ineffective in stopping progression of the cancer.
D) T cell responses often occur in patents with common forms of cancer,which are usually effective in stopping progression of the cancer
E) There is no evidence of T cell or antibody responses occurring to human tumors,without immunotherapy.