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".
Input: [header] How to give yourself a manicure using salon techniques [title] Remove any old polish. [step] Before you can apply a fresh color, you need to give yourself a blank canvas. When you choose a nail polish remover, look for one that is non-acetone. <sep> (A) Then if your nail polish does not say " acetone " on the label, pick the appropriate brand. [substeps] If you have any leftover polish, try putting it into a mini folder and shaking it. (B) Non-acetone is the finest cleaner when it comes to color application. Thick polish residue can get stuck onto the nails and it can make them toughen up more. (C) Acetone removers can be drying to your nails, and can potential cause flaking and damage. Using a durable paper towel or cotton pad, rub the nail polish remover into your nail until all of the polish is removed. (D) Note the temperature and type of solution you will need to apply. [title] Pour detergent into the paint compartment.
Output:
C