Finish the following sentence with the best choice: How do you prep your glass to make a custom beer mug?

Choices:
- Get a cotton ball and dip it in rubbing alcohol then rub the cotton ball on the glass.
- Get a cotton ball and dip it in rubbing alcohol then rub the cotton ball on the alcohol bottle.

Answer:
Get a cotton ball and dip it in rubbing alcohol then rub the cotton ball on the glass.