Instructions: 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".
Input: [header] How to dye hair two colors [title] Separate your hair. [step] Brush or comb your hair into two loose pigtails. This will make it easier to wrap in foil after you apply the bleach and the dye. <sep> (A) Pin this section of your hair up and leave the bottom section bare. [substeps] Your clothes will be protected from the dye by the foil. (B) [title] Find a booth in a room with air circulation. [step] If possible, it's best if you can see the entire workspace, including the counters near the tools and appliances that are often used to collect hair-bleaching products. (C) Tie an elastic band on each segment to mark the bottom 2/3 of your hair. [title] Bleach the area below the elastic bands. (D) Put two braids into one pigtails, one near the nape of your neck and the other behind the ears. [substeps] Each braid takes up the space between the twists and the top of your head (called the crown section).
Output:
C