Which of the following steps would create a supersaturated solution of sodium acetate?

• A. Add sodium acetate to cold water and stir continuously.
• B. Evaporate some water from a saturated solution at room temperature.
• C. Dissolve sodium acetate in water at room temperature until no more dissolves.
• D. Heat the solution, dissolve more sodium acetate, then cool it slowly.

Answer: (D)