Finish the following sentence with the best choice: To thoroughly mix the dry ingredients for a chocolate cake.

Choices:
- Sift potato starch, cocoa powder and baking powder through. Dump into another bowl.
- Mix potato starch, cocoa powder and baking powder and mix. Sift through into another bowl.

Answer:
Mix potato starch, cocoa powder and baking powder and mix. Sift through into another bowl.