Finish the following sentence with the best choice: How to make a wooden surface smooth?

Choices:
- Sand the wood down until it is smooth and then use a primer and before the primer has dried use paint on the wood
- Sand the wood down until it is smooth and then use a primer and once the primer has dried use gloss on the wood

Answer:
Sand the wood down until it is smooth and then use a primer and once the primer has dried use gloss on the wood