Please choose the correct solution to the question: To protect walls from door knobs.

Solution1: Simply cut a slit in a golf ball and wrap it around the offending knob—when it hits the wall, it will bounce right off rather than leaving an indentation.

Solution2: Simply cut a slit in a tennis ball and wrap it around the offending knob—when it hits the wall, it will bounce right off rather than leaving an indentation.

Answer format: solution1/solution2
Answer: solution2