Finish the following sentence with the best choice: To fold paper into fourths.

Choices:
- Pull two corners - horizonital or vertical - until they reach the other two corners. Undo, then repeat in the other direction.
- Pull two corners - horizonital or vertical - until they reach the other two corners. Undo, then repeat in the same direction.

Answer:
Pull two corners - horizonital or vertical - until they reach the other two corners. Undo, then repeat in the other direction.