In a hypotonic solution, the cell has more solute than its environment, which means that the concentration of solute is lower outside the cell compared to the inside. As a result, water moves into the cell from the surrounding environment to balance the solute concentrations. This influx of water causes the cell to swell, and if enough water enters, it can even lead to the cell bursting (lysis).
Therefore, the correct response is:
The cell has more solute than its environment, so solvent moves from outside the cell to inside the cell, causing the cell to swell.