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 finish maple [title] Sand the project you have made from maple wood using progressively fine sandpaper of 120 to 320 grit. [step] Finishing this tight will help close up the pores of the wood in preparation for staining. [substeps] When sanding is complete, wipe down the entire maple project with a lint-free cloth. <sep> (A) Rag off any excess dust as you go along. You don't want to smudge or drip the wood while sanding. (B) This removes dust that was left over from the sanding. [title] Choose a type of stain within your skill set as it can be a challenge for the beginner. (C) [title] Decide which side of the maple will be the body. [step] Every method is different, so have someone start working from the back side and you go. (D) [title] Sand the pressboard windows with 120-grit sandpaper applied to top of window. [title] Wipe down the sunglass windows with 150 to 150-grit sandpaper applied to top of panel.
Output:
B