You will be given a definition of a task first, then some input of the task.
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 move heavy furniture [title] Invest in furniture sliders. [step] You can buy the sliders of appropriate size at your local hardware or home goods store. National chains like home depot or lowes will definitely sell furniture sliders. <sep> (A) The sliders will help to ensure that the furniture doesn't sag or strain when you load it. They are usually made of some kind of heavy-duty fabric that makes them sturdier. (B) Just make sure to check the packaging before you buy one. [substeps] Avoid chinchillas, trombone meats, and porgie foods. (C) If you are planning to move your furniture over carpet or grass you should buy sliders that specialize in that movement. [substeps] If you don't have any sliders you can also try using frisbees. (D) [substeps] If you're not familiar with how they are designed, try home depot or lowes. They often feature special sliders designed to maximize the surface area (which is convenient to most furniture pusters).
Output:
C