Finish the following sentence with the best choice: To sand down the wooden board to a smooth finish.

Choices:
- Use a belt sander to prepare the surface, then use increasingly coarser grits to sand it smooth.
- Use a belt sander to prepare the surface, then use increasingly finer grits to sand it smooth.

Answer:
Use a belt sander to prepare the surface, then use increasingly finer grits to sand it smooth.