Finish the following sentence with the best choice: How to sweep a porch

Choices:
- Start at one side of the porch and sweep dust and debris into a pile at the center. Do the same from the other side of the porch. When all the debris has been collected in one large pile, sweep the pile into a dustpan and discard.
- Start at one side of the porch and sweep dust and debris into a pile at the center. Do the same from the other side of the porch. When all the debris has been collected in one large file, sweep the pile into a dustpan and discard.

Answer:
Start at one side of the porch and sweep dust and debris into a pile at the center. Do the same from the other side of the porch. When all the debris has been collected in one large pile, sweep the pile into a dustpan and discard.