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 rust and stains from a tin [title] Gather steel wool, sandpaper, a wire brush, or a crumpled ball of tinfoil. [step] These easy-to-find items can brush away small rust stains with ease. There's no reason to attempt more involved methods for lighter areas of rust when you can rub them away with common household items. <sep> (A) [title] Wipe down the drain with a cotton ball dipped in isopropyl alcohol. [step] The alcohol will help the cleaning process come to a complete stop within a few minutes if it's suitable to use. (B) [title] Put your back into it! [step] Vigorously scrub your tinware with one of these items using a back and forth motion. You need to put a decent amount of pressure on the tin to effectively clear away the rust. (C) [substeps] You may also use other household accessories such as rubber bands, sealing herbs, or even bandages. [title] Use either steel wool or a drywall polishing compound. (D) Sandpaper is the easiest and typically only lightly accepted, but is effective in spots that requires even more effort to reach. Used tin brushes can be found at most hardware stores.
A:
B