Finish the following sentence with the best choice: Glue stones together

Choices:
- Using a piece of fine grit sandpaper rough up the area of stone you need to glue,Use a  few dabs liquid epoxy on the bottom of a stone and apply to another stone
- Using a piece of fine grit sandpaper rough up the area of stone you need to glue,Use a  few dabs liquid epoxy all over a stone and apply to another stone

Answer:
Using a piece of fine grit sandpaper rough up the area of stone you need to glue,Use a  few dabs liquid epoxy on the bottom of a stone and apply to another stone