Finish the following sentence with the best choice: Sand a sled for future use

Choices:
- using a piece of rough sandpaper, rub the sandy part against the wood with the grain- along the wood until smooth
- using a piece of rough sandpaper, rub the sandy part toward your hand- with the grain- along the wood until smooth

Answer:
using a piece of rough sandpaper, rub the sandy part against the wood with the grain- along the wood until smooth