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".
Q: [header] How to clean acrylic paint brushes [title] Wipe away paint with a paper towel or rag. [step] This step is optional, but may help. Before you clean the paintbrush with water, first wrap a paper towel or rag around the bristles of the brush and gently press to remove excess paint. <sep> (A) Place the brush upright, open-ended, on a flat surface. Wipe down the bristles with a clean paper towel or rag. (B) [substeps] If the brush is dry, dry it with a paper towel. A paper towel was not meant to be used for this purpose and is likely to leave residue on the brush rather than help it clean more effectively. (C) After you have cleaned your brushes, dry them off. [title] Submerge the brush in warm water. (D) Wiping away the excess paint will make the washing process easier and faster. [substeps] Don't wait in between painting and cleaning.
A:
D