There are several different interleukins secreted by active leukocytes. What is the function of these interleukins?
a. Increase the activity of B cells, cytotoxic cells, and natural killer cells
b. Stimulate T and B cells to initiate an immune response
c. Stimulate the production of more T cells
d. Stimulate the thymus gland to release hormones to mature T cells
e. Cause fever, arthralgia, myalgia, and slow-wave sleep induction
