Finish the following sentence with the best choice: How do you sharpen a knife in a rural area?

Choices:
- Take the blade end of the knife and use on a banana leaf, sliding it back and forth to rub off the burrs.
- Take the blade end of the knife and use on a stone water fountain, sliding it back and forth to rub off the burrs.

Answer:
Take the blade end of the knife and use on a stone water fountain, sliding it back and forth to rub off the burrs.