Finish the following sentence with the best choice: To prevent cake from sticking to the cake pan.

Choices:
- Grease the inside of the pan with shortening and then flour it. I also place a round piece of parchment paper on the bottom.
- Grease the inside of the pan with shortening and then sugar it. I also place a round piece of parchment paper on the bottom.

Answer:
Grease the inside of the pan with shortening and then flour it. I also place a round piece of parchment paper on the bottom.