Which of the following statement is correct about diffusion?

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, due to random thermal motion. Therefore, the statement that is correct about diffusion is "molecules move from a region of higher concentration to a region of lower concentration." This is because diffusion is a natural process that occurs when there is a concentration gradient, and molecules will move from an area where there are more molecules to an area where there are fewer molecules until equilibrium is reached. Diffusion can occur in any type of solution, whether it involves water or not. It does not require a differentially permeable membrane to occur, but a membrane can affect the rate at which diffusion occurs. Furthermore, diffusion does not involve when a solute can no longer dissolve in a solvent of only solute molecules into the Bowman's capsule, or when a solute can no longer dissolve in a solvent, as this is a different process called precipitation.