Which statement correctly differentiates diffusion from osmosis?

Which statement correctly differentiates diffusion from osmosis?

• A. Diffusion moves water from high to low concentration.
• B. Osmosis is diffusion of solute across a semipermeable membrane.
• C. Diffusion requires energy input.
• D. Diffusion is the movement of solute from high to low concentration; osmosis is the diffusion of water across a semipermeable membrane.

Answer: (D)