Osmosis Differs from Simple Diffusion Because

Osmosis differs from simple diffusion because

A) osmosis describes water's movement across membranes, while simple diffusion describes the movement of substances across membranes.
B) in osmosis, water is moving to a high concentration of dissolved substances, while in simple diffusion, substances are moving to an area of lower concentration.
C) There is no difference; they are equivalent.
D) A and B