Detailed 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".
Problem:[header] How to grow your fingernails [title] Wash your hands with a gentle soap. [step] Using a harsh soap may make your nails brittle. [title] Pat your hands using a towel. <sep> (A) [step] [title] You could also rub baking soda to make them into little balls and then brown them if necessary. [step] This is not necessary for your nails, but could make them grow. (B) [step] This will hold off the growing process. [title] Gently arrange your cuticles in order. (C) [step] Give each hand a chance to dry before moving onto your next step. [title] Take a fine-bristled brush or a soft cloth. (D) [title] Fill a plastic bowl with enough white vinegar to cover your nails. [title] Soak your nails (one hand at a time) in the vinegar for 4-5 minutes, while your other hand holds the bowl steady.
Solution:
D