<human>: Here is a goal: How do you remove hard water stains from stainless steel?

How would you accomplish this goal?

OPTIONS:
- Soak the edge of a cloth or sponge in the club soda and wipe over the metal surface. Repeat as needed until the water stains have been removed completely.
- Soak the edge of a cloth or sponge in the diet soda and wipe over the metal surface. Repeat as needed until the water stains have been removed completely.
<bot>: Soak the edge of a cloth or sponge in the club soda and wipe over the metal surface. Repeat as needed until the water stains have been removed completely.