Answer:
C. n-Butanol molecules surround water molecules.
Explanation:
Because both liquids are polar, they can be mixed (polar dissolves polar, and nonpolar dissolves nonpolar). N-Butanol is the solvent, so it has a large amount in the solution, and water is the solute. When a liquid-liquid solution is placed, the solvent surrounds the molecules of the solute, so the solute is dissociated in the solution.
Then, the n-Butanol molecules surround the water molecules.