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". 

Example Input: [header] How to prepare your skin for waxing [title] Let your hair grow. [step] Don't book a waxing appointment until you haven't waxed for least one to two weeks. Ideally, you should have 1/4 inch (. 635 cm) of hair in the area you want to wax. <sep> (A) Additionally, waxing will help repair damaged skin and nourish the skin. Let a few days or no more than a couple weeks pass between waxing times to allow for new growth. (B) Don't wait until your hair has grown beyond this length unless you absolutely have to. Shedding your hairs to cut them will prolong your wait time. (C) If it's not a waxing appointment, follow the instructions provided in the waxing kit for best results. [title] Apply a 30% moisturizing oil. (D) Waxing will be more painless and effective if you wait long enough to wax. [substeps] The exception to this is fine hair, like women's facial hair.
Example Output: D

Example Input: [header] How to go dairy free and stay healthy [title] Make changes to your diet slowly. [step] Start by making small changes to your diet, removing dairy slowly and over time. By making small changes that you can live with, you will find it easier to sustain this new diet that you are implementing. <sep> (A) [substeps] The purpose of these changes is to reduce your current sugar intake or processed food consumption, so don't put the drastic changes in your diet into perspective. If you go dairy free, you'll start not eating or making overly processed foods. (B) This will help to motivate you to start eating healthier. [substeps] You may need some additional input of what you should change every day. (C) [substeps] Don't start a new diet that increases your risk for developing some form of obesity. This can reduce your metabolism and enables you to control your weight. (D) [substeps] By gradually decreasing your consumption of dairy products, cravings may not be as intense. If you are already aware of the dairy products you currently consume, remove the dairy products that you can live without.
Example Output: D

Example Input: [header] How to get your nipples pierced [title] Find a reputable piercing/tattoo parlor in your area. [step] Is the first and arguably most important step in getting your nipple pierced. Piercing establishments are often found in urban areas, but you'll come across them in even the remotest of places. <sep> (A) Finding a reputable piercer is always a key element. [substeps] Dentists and jewelers are crucial people in a pierced piercing business. (B) [substeps] Once you have found a reputable piercing parlor, ask to speak to an employee to get a recommendation and get your tattoos noticed. It's always a good idea to look at a tattoo parlor's website or to speak to an experienced piercer. (C) Google, as with most things, is a good way to start your search for a parlor. The website should be professional and well-organized, with plenty of helpful information. (D) [substeps] Places to shop for your nipple piercing include drugstores, fashion stores, and tattoo studios. You will be able to find someone who specializes in body piercings, ear piercings, and intrauterus piercings.
Example Output:
C