A key part of the humoral immune response is A) the cytotoxic T-cell attack of infected host cells B) the production of antibodies by plasma cells C) perforation of infected host cells by perforin D) phagocytosis of pathogens E) the initiation of programmed cell death in infected host cells Question 17 (3 points) Which of the following would help a virus avoid triggering an effective adaptive immune response? Select all that apply. | A) Having frequent mutations in genes for surface proteins B) Building the viral shell from host proteins C) Producing proteins very similar to those of other viruses | D) Infecting and killing helper T cells E) Surrounding itself with a capsid