All of the following are primarily associated with CD4 T-cell function EXCEPT that it Select one: a. improves phagocytic mechanisms of tissue macrophages. b. assists B cells in the production of high-affinity antibodies. c. kills virus-infected cells. d. facilitates responses of other immune-system cells during infection. e. assists macrophages in sustaining adaptive immune responses through their secretion of cytokines and chemokines.
