The only neurons showing action potential are: (A) Amacrine cells, (B) Ganglionic cells, (C) Cells of lateral geniculate body, (D) Rods and cones
Answer is B. Their axons form optic nerve and leave the retina, hence they are the only output cells from the retina. They are the only retinal cells capable of producing an action potential Ref: Ganong 25th ed/page 178