Finish the following sentence with the best choice: How can I save money on toner or ink cartridges?

Choices:
- Take the old used cartridges to Costco, they'll refill them for 10 dollars.
- Take the old used cartridges to Costco, they'll dispose of them for 10 dollars.

Answer:
Take the old used cartridges to Costco, they'll refill them for 10 dollars.