You will be given a definition of a task first, then some input of the task.
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".

[header] How to make napkin rings [title] Cut an empty toilet paper roll into thirds. [step] You can also use a paper towel roll instead; in that case, cut the roll into rings as thin or as thick as you'd like. Many people find a serrated bread knife the easiest for this, but you can also use a pair of scissors instead; be careful not to squish the roll too much. <sep> (A) [substeps] If you want to make rings with random, intricate patterns, now is the time to do it. [title] Use unsalted butter instead of margarine or olive oil. (B) [title] Cut 5 to 6 bars of butter into quarters. [step] The bars should all be the same width, with the thickest bars closest to you and the largest bars closest to the center. (C) [substeps] Sometimes, toilet paper rolls will have little bits of paper stuck to them. Try to peel these off as best as you can. (D) [substeps] Use folded paper towels instead of paper towels or tissue paper, too, if you want to save spare paper rolls for later on. [title] Cut a 6-inch by 6-inch (15.
Output:
C