Finish the following sentence with the best choice: How do you get a waterstone of fine grit to produce slurry?

Choices:
- You need to rub your hand along the waterstone in order to create the necessary slurry.
- You need to rub a nagura stone along the waterstone in order to create the necessary slurry.

Answer:
You need to rub a nagura stone along the waterstone in order to create the necessary slurry.