Finish the following sentence with the best choice: how to sharpen a knife quickly

Choices:
- sharpen your knife quickly by rubbing the food processor against the unglazed portion on the bottom of a ceramic plate or mug.
- sharpen your knife quickly by rubbing the blade against the unglazed portion on the bottom of a ceramic plate or mug.

Answer:
sharpen your knife quickly by rubbing the blade against the unglazed portion on the bottom of a ceramic plate or mug.