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".

[header] How to clean vinyl windows [title] Rinse off dirt and debris with clean water. [step] Vinyl windows can be easily scratched and discolored, so caution is needed when cleaning them. Use fresh, clean water to rinse off any loose particles and dirt from the surface by gently pouring water from a pitcher or wringing it out of a clean wet rag. <sep> (A) [substeps] Always use warm water when cleaning vinyl windows, as hot water is extremely dangerous. Check the safety on your thermometer. (B) Avoid wiping debris-covered windows without rinsing them first. [substeps] To avoid scratching, you should also remove any rings, bracelets and watches you're wearing before you begin. (C) [substeps] Use an old toothbrush to lightly scrub soap into the area where the windows are. [title] Pour mineral spirits into a spray bottle. (D) [title] Dust with a rag, then apply a small amount of vegetable oil and a light coat. [step] Apply a light coat to entire glass or vinyl surfaces to prevent cracking.
B