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 disinfect public surfaces [title] Don't directly touch surfaces. [step] Cars, buses, subways, and the like are potentially dirty places, often housing germs on upholstered seats, flooring, and railings which thousands of human hands have touched. [title] Consider standing whenever possible, or sitting on a newspaper or other disposable object. <sep> (A) [step] People generally pick up stains when they are standing, especially when dirty. People may also pick up smells when their hands are in their pockets or under their skirts. (B) [step] These will help to disinfect new surfaces that may come into contact with your hands and make cleaning a lot more fun. [title] Collect cleaning materials with chlorine bleach. (C) [step] Instead of grabbing onto handrails with one's hands, wrap a clothing-clad arm around the pole to keep hands clean. The danger with this, of course, is slipping and losing your balance should the transport stop quickly. (D) [step] This will keep viruses from penetrating and causing an outbreak. [title] Even if you intend to disinfect surfaces that may be monitored, don't purposefully touch them.
A:
C