Answer is:
Sugar is solute.
Water is solvent.
Sugar-water mixture is solution.
Solution (in this example sugar is dissolved in water) is homogeneous mixture composed of two or more substances.
In aqueous solution, solvent is water and solute (in this example sugar) is a substance dissolved in water.
Solvent is always the same state of matter as the solution. In this example, sugar-water solution is liquid, so water is a solvent.
Solvation is the interaction of solvent (water) with molecules or ions in a solute.
