Please choose the correct solution to the question: How to clean a chopping board without chemicals.

Solution1: Use kosher salt and lemons. Sprinkle on the salt. Cut a lemon in half and then scrub with the lemon.Rinse under running water.

Solution2: Use kosher salt and lemons. Sprinkle on the salt. Cut a lemon in half and then scrub with the lemon.Rinse under stagnant water.

Answer format: solution1/solution2
Answer: solution1