Question: Which of the following three statements applies to T cell activation by B cells (acting as antigen-presenting cells)? Need Assignment Help? Question Select one or more: a. Antigenic peptides associated with MHC class I molecules are presented to TH2 cells. b. Costimulation by the interaction of CD40 and CD40L is required for activation of the T cell. c. Secretion of IL-4 by the B cell induces T cell division. d. The T cell recognises the presented antigen using its T cell receptor. e. The CD8 molecule brings a kinase into association with the MHC/peptide/TCR complex which causes phosphorylation of the T cell receptor and triggers T cell activation. f. Antigens are internalised and processed by the B cell before they are presented to the T cell.