Finish the following sentence with the best choice: How can I keep my garbage disposal blades sharp and in good repair?

Choices:
- Once a month add 6 metal washers into your disposal and turn it on and wash it away, this will sharpen and clean the garbage disposal.
- Once a month add 6 ice cubes into your disposal and turn it on and wash it away, this will sharpen and clean the garbage disposal.

Answer:
Once a month add 6 ice cubes into your disposal and turn it on and wash it away, this will sharpen and clean the garbage disposal.