By which method can you separate a mixture of NaCl and water?

Distillation is the correct method because NaCl (salt) has a much higher boiling point than water, so when the solution is heated, water evaporates first and can be collected as distillate, leaving solid salt behind. Sublimation is for solids that directly vaporize, solvent extraction requires another solvent, and liquefaction is converting gas to liquid - none of these separate salt from water effectively.