Final answer:
Activated CD8 T cells produce cytokines, specifically interleukins, which drive their own proliferation and differentiation. Interleukins are crucial for immune responses and are not involved in the production of antibodies, which is the function of B cells.option d.
Step-by-step explanation:
Activated CD8 T cells produce cytokines, which are crucial for their own proliferation and differentiation. Cytokines are a group of proteins secreted by cells of the immune system that mediate and regulate immunity, inflammation, and hematopoiesis. Among cytokines, interleukins play a particularly important role in the immune responses, including the production of various lymphocytes.
Interferons are another class of cytokines that are produced by infected cells to warn nearby uninfected cells of a viral infection, which helps in activating immune cells such as macrophages. However, activated CD8 T cells do not make antibodies; rather, B cells are responsible for that function. Regarding the innate immune system, components like natural killer cells also assist in the immune response against virally infected cells, functioning in concert with the cytotoxic T cells.