Which best describes the difference between osmosis and diffusion? a. osmosis is the movement of particles from a high to a low particle concentration, while diffusion is the movement of water from a high to a low water concentration. b. diffusion is the movement of particles from a high to low particle concentration, while osmosis is the movement of water from a high to a low water concentration. c. diffusion is the movement of particles from a low to a high particle concentration, while osmosis is the movement of water from a low to a high water concentration. d. osmosis is the movement of particles from a low to a high particle concentration, while diffusion is the movement of water from a low to a high water concentration.