Which of Thfollowing Is CORRECT About Osmosis

Which of thfollowing is CORRECT about osmosis?

A) Osmosis is the diffusion of salt molecules through the plasma membrane.
B) Osmosis is the diffusion of water molecules through the plasma membrane.
C) Osmosis is the diffusion of hydrophilic molecules through the plasma membrane.
D) Osmosis is the diffusion of hydrophobic molecules through the plasma membrane.
E) None of these are correct.