Finish the following sentence with the best choice: To get rid of fruit flies naturally.

Choices:
- Fill a bowl with apple cider vinegar and a bit of water. The vinegar will attract them and the water will kill them.
- Fill a bowl with apple cider vinegar and a bit of soap. The vinegar will attract them and the soap will kill them.

Answer:
Fill a bowl with apple cider vinegar and a bit of soap. The vinegar will attract them and the soap will kill them.