The Central Vacuoles of Plant Cells Fill with Water and Press

The central vacuoles of plant cells fill with water and press against their cell walls because of osmosis. What can you predict about the concentration of solutes in the solution that bathes a turgid plant cell?

A) The concentration of solutes outside the cell must be significantly lower than the concentration within the cell.
B) The concentration of solutes outside the cell must be significantly higher than the concentration within the cell.
C) There must be no solutes either outside or inside the cell.
D) The concentration of solutes outside the cell must be about the same as that of seawater.
E) The concentration of solutes outside the cell can't be predicted, because it's the concentration inside the cell that's important.