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 vomit from a mattress [title] Scrape the vomit off the bed. [step] The first step is cleaning the mattress is removing the vomit from the surface of the bed. Use a paper plate to scrape any solids off the bed, and place it in a plastic bag to discard in the trash. <sep> (A) [substeps] Before cleaning up the vomit, it's a good idea to put on rubber gloves. That will protect you from any germs. (B) Most people may choose not to use a paper plate, as it won't remove the vomit as quickly. [substeps] Alternatively, you can use a rubber spatula instead of a paper plate. (C) [substeps] Another way to remove the vomit is to place a paper plate over the area where the vomit was. This will catch any solids that have collected. (D) [substeps] If the vomit did not come from any solid bedding, use a paper plate and clean the whole mattress with it. [title] Use a bucket to pour out the vomit.
A:
A