Which of the following statements best compares and contrasts facilitated diffusion with simple diffusion?

A. Simple diffusion uses a transport protein to bring materials into and out of the cell while facilitated diffusion requires energy.

B. Both diffusion and facilitated diffusion move molecules from high to low concentrations and REQUIRE the use of ATP. However, Facilitated diffusion moves larger molecules across the membrane and therefore require a channel or transport protein to help get the materials through.

C. Both diffusion and facilitated diffusion move molecules from high to low concentrations and don't require ATP. However, Facilitated diffusion moves larger molecules across the membrane and therefore require a channel or transport protein to help get the materials through.

D Diffusion and facilitated diffusion move molecules from high to low concentrations and don't require ATP. However, Facilitated diffusion uses the help of other cells to move materials into and out of the cells.