I am currently an A-level biology student — what I understand is:
B cells can either be independent of T cells or dependent on T cells for activation. The ones which are dependent on T cells require an activated T-helper effector cell to bind to the MHC II site of the B-APC.
However, a textbook stated that B cells are activated by interleukins produced by T cells.
Is this a simplification or are both process required for the activation of B cells?