Theoretically,how Might Researchers Disrupt Signal Transduction Pathways as Possible Treatments

Theoretically,how might researchers disrupt signal transduction pathways as possible treatments for cancer?

A) alter G protein-coupled receptors involved in cell cycle regulation to be active in the absence of their normal signaling molecules
B) inactivate epinephrine receptors on cancer cells
C) disrupt the function of protein kinases involved in cell cycle regulation
D) stimulate production of cAMP in cancer cells