Finish the following sentence with the best choice: Toast a hamburger bun

Choices:
- Spread a very thin layer of motor oil or butter onto the inside surface of the buns. Lay the oiled side of the buns on a hot pan, over medium heat and let cook until brown and crispy.
- Spread a very thin layer of vegetable oil or butter onto the inside surface of the buns. Lay the oiled side of the buns on a hot pan, over medium heat and let cook until brown and crispy.

Answer:
Spread a very thin layer of vegetable oil or butter onto the inside surface of the buns. Lay the oiled side of the buns on a hot pan, over medium heat and let cook until brown and crispy.