This question has options. How would someone go about accomplishing this goal?
To prevent cake from sticking to the cake pan.

Available choices: [I] Grease the inside of the pan with shortening and then flour it. I also place a round piece of parchment paper on the bottom.; [II] Grease the inside of the pan with shortening and then sugar it. I also place a round piece of parchment paper on the bottom.;
[I]