Teacher:In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Teacher: Now, understand the problem? Solve this instance: [header] How to make cotton candy flavored popcorn [title] Place the popcorn kernels in a paper bag. [step] For cotton candy flavored popcorn, plain, air popped popcorn works best. Add 9 tablespoons (113 g) of unpopped popcorn to a brown paper bag, and fold the bag closed several times. <sep> (A) Seal the bag and set the bag in the refrigerator. [substeps] Choose your candy wrappers and paper cutouts after the popcorn kernels are sealed. (B) [substeps] You only need to empty a small amount of kernels into the bag first, and then add enough to make 3 to 4 popcorn pieces. If you have bags large enough to cover the popcorn kernels, wipe the bottom of each bag off with a clean paper towel. (C) [substeps] When you're making a large amount of popcorn, it may burst out of the bag when it pops. You may want to use a piece of tape to secure the bag closed. (D) Do not twist the bag as you place the popcorn kernels in the bag. [substeps] Air popped popcorn looks similar to the kind used in films.
Student:
C