Mark Brainiest if right plzz. 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 piece of zinc with a larger piece.

B. Decrease the concentration of the copper sulfate solution

C. Decrease the temperature of the solution.

D. Increase the concentration of the copper sulfate solution.​