When an environment is hypotonic, it has a lower concentration of solutes compared to the inside of the cell. This means that the outside environment has more solvent (usually water) relative to the solute concentration. As a result, water moves into the cell to equalize the solute concentrations.
The correct response is:
The cell has more solute, so solvent moves from outside the cell to inside, causing the cell to swell.
This process can lead to the cell swelling and potentially bursting if the influx of water is significant enough.