Please choose the correct solution to the question: how to clean copper sinks

Solution1: Use a mild dish soap and a soft contact lens solution to clean your sink. Wipe all sides of the sink with the soapy sponge.Rinse and towel dry the sink after cleaning it.

Solution2: Use a mild dish soap and a soft sponge to clean your sink. Wipe all sides of the sink with the soapy sponge.Rinse and towel dry the sink after cleaning it.

Answer format: solution1/solution2
Answer: solution2