Noah wants observe what happens when zinc is placed in a solution of copper sulfate, as shown in the photo. But when he tries it, nothing happens.
He knows that the reaction might be happening too slowly to see results in a
few minutes. Which action should Noah take to speed up the reaction?

A) replace the price of zinc with a larger piece

B) decrease the concentration of the copper sulfate solution

C) increase the concentration of the copper sulfate solution

D) decrease the temperature of the solution