Answer:
The correct answer is option c, that is, osmotic pressure.
Step-by-step explanation:
The development of the force, which takes place when two solutions exhibiting distinct solute concentrations are distinguished by a semipermeable membrane is known as osmotic pressure. It is the least pressure that is required to be imparted to a solution to inhibit the inward pure solvent flow through a semipermeable membrane.
The flow of solvent molecules via a semipermeable membrane to a region of high solute concentration from a region of low solute concentration, until attainment of equilibrium, is done is termed as osmosis.