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: A gardener is shown trimming very tall bushes with a gas powered trimmer that he plugs in and gets ready. He turns a few dials and gets to cutting some more of the surrounding bushes. he <sep> (A) appears very happy with his efforts watching up close while clipping the very tall hedges that has a special effect. (B) trims up and down the length of them with precision and accuracy. (C) goes back and forth with the trimmer while still cutting the hydro leaves, trimming them with a hand cutting tool, cutting the bushes, and trimming them with a stone powered trimmer. (D) cuts straight through the beginning raking the leaves and an older man walks in and takes a look at the clipping.

Answer: B


Question: [header] How to revive a cell phone battery [title] First, gather your supplies. [step] You'll need the following : [substeps] 9-volt battery-any brand will do. Electric tape-you'll need no more than five inches. <sep> (A) One piece of tape will be enough to run a battery. ( the full number of inches is difficult to determine. (B) Electrical wire-basic thin electrical wire will do. Red (+) and black (-) are preferred. (C) Sturdy cardboard, which you can cut into squares. A magnetized or metal battery with a 1 inch sticker at the bottom. (D) A stainless steel microwave-11 volt at minimum. 2 wire meters-pick at least 4-feet of 4-foot (1.4 m) long wire.

Answer:
B