Osmotic pressure(OP)
Suction pressure(SP)
Turgour pressure(TP)
Wall pressure(WP)
The Correct option is A : Osmotic pressure(OP)
When water moves through a semipermeable membrane, osmotic pressure (OP) is created due to the movement of water molecules from an area of lower solute concentration to higher solute concentration, aiming to equalize concentrations across the membrane.