<human>: Which of the following solutions is better for the following goal:
how to sharpen a knife quickly

OPTIONS:
- 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.
<bot>: sharpen your knife quickly by rubbing the blade against the unglazed portion on the bottom of a ceramic plate or mug.