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 clean white leather furniture [title] Wipe grease stains away with a dry cloth. [step] Adding a fluid or other cleaning solution will only help the stain set. It's important to deal with these stains promptly so they don't have a chance to set. <sep> (A) [title] Spray white leather furniture with a leather conditioner spray. [step] The conditioner will help the stain to set and make it easier to remove after cleaning the cloth. (B) [title] Blot away oil stains on leather furniture. [step] Based on the application of a specially formulated cleaner, scuffing any dirt or grime off your furniture will not stain it further. (C) [substeps] For smaller stains you may wipe the stain away with a soft rag. On bigger stains you may need to rub the spot with your paper towel. (D) [substeps] If the stain has had time to set, you can sprinkle baking soda on it. Leave it for a few hours, allowing the grease to soak into the baking soda.
Output:
D