Finish the following sentence with the best choice: Remove lingering kitchen smell.

Choices:
- Boil 1 cup of water and 1/2 cup of cooking oil until all liquid is gone.
- Boil 1 cup of water and 1/2 cup of vinegar until all liquid is gone.

Answer:
Boil 1 cup of water and 1/2 cup of vinegar until all liquid is gone.