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 clean a plastic water tank [title] Open the outlet valve or tap. [step] The first step to cleaning your tank is to empty all of the water from it. To do so, open the outlet valve or tap at the bottom of your tank and let all of the water flow out. <sep> (A) [substeps] You may find that there's extra water in your tank that you need to empty. Read the instructions carefully to see if your water is full enough to remove. (B) You will have to remove several pieces of tank flooring to access one. For the best results, take the steps above. (C) Then, use a bucket to wipe the water down away from the water line, then gently empty the tank contents into the toilet. [substeps] You should also clean the water tank once every few months to keep it clean. (D) [substeps] Connect a hose to the open valve in order to direct the water to a location where it will not cause any localized flooding or erosion. Permanent water tanks have a washout valve that is located at the base of the tank.

Answer: D


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 get a felony expunged [title] Know what expungement does. [step] Expungement is a process by which you hide an arrest or conviction from your record, which means you will not have to disclose it to potential employers, landlords, or others. Every state manages your criminal record differently, so be sure you understand your state's policy. <sep> (A) Make sure you understand your state's guidelines to expunge convicted defendants from your records. [substeps] Some states prohibit expungement for individuals convicted of a felony such as a juvenile offense. (B) [substeps] In michigan, if you qualify for expungement, your conviction will not be available to the public. In california, an expungement acts as a dismissal. (C) If you have a felony expunged, you are required to declare your conviction within five years of that conviction. [substeps] Expungement cases generally last between six and ten years. (D) [substeps] In some states, expungement is permanent without parole. In others, you may be in probation for a period of six years.

Answer:
B