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". 
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Question: [header] How to paint watermelon nails [title] Remove any old nail polish. [step] Soak a cotton ball or pad with nail polish remover. Rub the soaked cotton ball over the old nail polish gently to remove the polish. <sep> (A) [substeps] Rinse away the polish from the peel and gently scrub away the residue, to avoid further staining the polish. You do not have to cover the peel in nail polish remover. (B) Don't wipe the wet cotton onto the watermelon, but rather gently rub it over the nail until the paint is lost. [substeps] Washing the cotton ball between uses will get rid of any old paint. (C) You can also wear gloves to avoid damaging your fingers. [substeps] The rubbing motion will help the polish to adhere to the nails. (D) [title] Paint your entire nail a light pink or red, the color of watermelons. [step] After applying a clear base coat apply a thin coat of pink or red polish starting at the base of the nail and working your way up.

Answer: D


Question: [header] How to become an endocrinologist [title] Obtain a bachelor's degree in a science-related major. [step] Though you could choose any major you want, it's best to study something like physiology, biology, or social science. These majors will help you build the prerequisite skills for medical school. <sep> (A) [substeps] If you are enjoying high school, they might teach you basic tests or techniques, like how to fight ethylene gas. Foreign nationals don't get their master's degree until they finish medical school. (B) [substeps] These degree levels will take some effort on your part, so keep an eye out for whatever college you want to attend. It's not always necessary to go to medical school if you're currently planning on med school. (C) [substeps] Enroll in or look for a program at an accredited medical school. Most states require endocrinology courses at high schools and universities. (D) In addition to studying science, you should also take courses in math, english, and the humanities. These courses can help prepare you for interacting with patients and writing reports.

Answer: D


Question: [header] How to put in an above ground pool [title] Find what you need. [step] Before you start to build your pool, make sure you're equipped with all of the tools you'll need. Many of the tools you'll use can be rented from your local equipment rental outlet. <sep> (A) In order to get started, you'll need a deck, a sheet of paper, and a ball game. Another helpful tool is a pool racker, which is a floating board with a hole poked through the center. (B) Also, if your pool is new, you may be able to rent other equipment. Check online until you have everything you need. (C) If you're planning on using the different tools, store them with you. Make sure to install a 24 hour auto service router when you first begin your first year of operation. (D) [substeps] Shovel tape measure phillips head screwdriver duct tape sand filter skimmer patio blocks (2 " x 8 " x 16 ") wrench (5/16 and ¼) level rake [title] Open the hardware packets. [step] Go through and separate the hardware so that it is easier to find what you need when you need it.

Answer:
D