Finish the following sentence with the best choice: To get rid of toilet bowl stains.

Choices:
- Pour a can of condensed milk into the toilet bowl, and let it sit overnight. Then wash it with soapy water, and flush clean.
- Pour a can of Coca-Cola into the toilet bowl, and let it sit overnight. Then wash it with soapy water, and flush clean.

Answer:
Pour a can of Coca-Cola into the toilet bowl, and let it sit overnight. Then wash it with soapy water, and flush clean.