Finish the following sentence with the best choice: How do you solder two coins together?

Choices:
- Place coins where you would like them to be joined and apply glue to both sides in order to make them adhere to each other.  Cool down quickly with a water bottle.
- Place coins where you would like them to be joined and apply heat to both sides in order to make them adhere to each other.  Cool down quickly with a water bottle.

Answer:
Place coins where you would like them to be joined and apply heat to both sides in order to make them adhere to each other.  Cool down quickly with a water bottle.