Finish the following sentence with the best choice: To feed the sourdough starter,

Choices:
- Remove all but one tablespoon starter from its jar, add 1/3 cup water and 1/3 cup soap, and stir with a spoon.
- Remove all but one tablespoon starter from its jar, add 1/3 cup water and 1/3 cup flour, and stir with a spoon.

Answer:
Remove all but one tablespoon starter from its jar, add 1/3 cup water and 1/3 cup flour, and stir with a spoon.