<human>: Here is a goal: what to use to clean your tub

How would you accomplish this goal?

OPTIONS:
- Cut a tennis ball in half and sprinkle the bottom of your tub with salt. The salt will act as a scrub, and rinse clean.
- Cut a grapefruit in half and sprinkle the bottom of your tub with salt. The salt will act as a scrub, and rinse clean.
<bot>: Cut a grapefruit in half and sprinkle the bottom of your tub with salt. The salt will act as a scrub, and rinse clean.