Finish the following sentence with the best choice: How can you get free Krispy Kreme donuts?

Choices:
- The bottom of every receipt has a survey, if you fill out the survey you get a free donut, you can eat like this for a long time.
- The bottom of every receipt has a survey, if you fill out the survey you get a free napkin, you can eat like this for a long time.

Answer:
The bottom of every receipt has a survey, if you fill out the survey you get a free donut, you can eat like this for a long time.