Yes, I am sure. When making a supersaturated solution, heating the solvent (such as water) increases the solubility of the solute because the increased temperature provides more kinetic energy to the molecules. This allows more solute to dissolve than would be possible at lower temperatures. Once a saturated solution is created at high temperature, it can be cooled carefully, leading to a supersaturated state where more solute is dissolved than normally would be at that lower temperature.
Therefore, the correct statement regarding the preparation of supersaturated solutions is: The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility.