(1) (2) (a)(1) (2) (3) (b)I fop panet A. TH cell binds with the seif-nonseit complexes of a 8 cet that has oncountered its antigen 2 top panei and is displaying it on MHC It on it surface 1 botlom panal E. TH coll releases interieubins as co-stimulatory signals to obmplefe ti ced activitation 2 bottom panel C Previously activaded TH coll bines dendritic cell. 3 bottom panel b. TH coll stirnulasos deraritic cell to expresa coislimulatary molecieon (neit shcmen) navded to actrate CDe cel E. Denditic cel can now actevate COB cell with the hele of interiecken 2 secreled by the TH. cell.1 top panel 2 top panel - 1 bottom panel - v2 bottom panel 3 bottom panelA. TH cell binds with the self-nonself complexes of a B cell that has encountered its antigen and is displaying it on MHC II on it surface. B. TH cell releases interleukins as co-stimulatory signals to complete B cell activitation. c. Previously activated TH cell binds dendritic cell. D. TH cell stimulates dendritic cell to express co-stimulatory molecules (not shown) needed to activate CD8 cell. E. Dendritic cell can now activate CD8 cell with the help of interleukin 2 secreted by the TH cell..