At a given temperature osmotic pressure is given by a formula i.e.

Where is the osmotic pressure, is the van’t Hoff factor, M is the molar concentration, R is the universal gas constant and T is the temperature.

Thus, osmotic pressure directly proportional to the concentration.

For a concentrated solution, the osmotic pressure is greater than the osmotic pressure for a dilute solution.

Thus, Option (i) is the correct answer.