<human>: Here is a goal: To rub scratches out of  a pair of sunglasses.

Which way makes more sense to accomplish this goal?

OPTIONS:
- Apply a small amount of toothpaste on a soft cloth and then rub it into the sunglasses. Rinse with water.
- Apply a small amount of toothpaste on a soft cloth and then rub it into the sunglasses. Rinse with soda.
<bot>: Apply a small amount of toothpaste on a soft cloth and then rub it into the sunglasses. Rinse with water.