Please choose the correct solution to the question: To clean a watch dial,

Solution1: make sure that the dial is separated from the watch, and take a can of compressed air and gently blow any dust off. Use rubbing alcohol and a towel to wipe any smudges off the dial.

Solution2: make sure that the dial is separated from the watch, and take a can of compressed air and gently blow any dust off. Use soapy water and a towel to wipe any smudges off the dial.

Answer format: solution1/solution2