Answer: -Water molecules surround solute molecules.
Explanation: The solubility of substances is governed by: Like dissolves like, which states that polar compounds are soluble in polar solvents and non polar compounds are soluble in non polar solvents.
Water being a polar solvent is able to dissolve only polar solutes and not able to dissolve non polar solutes.
The polar solutes when dissolved in water are surrounded by water molecules and due to high dielectric constant of water the polar molecules are separated and thus get dissolved in water.