Please choose the correct solution to the question: Restore plastic solar cells so they can fully recharge

Solution1: Using  automotive headlight restorer cleaner and steel wool clean the surface of the plastic solar cell to remove discoloration and haze.

Solution2: Using a automotive headlight restorer cleaner and a soft cloth clean the surface of the plastic solar cell to remove discoloration and haze.

Answer format: solution1/solution2
Answer: solution2