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".

[Q]: [header] How to change a drill bit [title] Loosen the chuck. [step] The chuck is piece on the end of the drill that loosens and tightens to hold the bit. Grasp the chuck with one hand while you hold the handle of the drill with your other hand. <sep> (A) Loosen the chuck by sliding the drill bit along one side. If you have known it already, it will already be loose, but there is a screw on the end of the piece that holds the bit in place. (B) Use extra leverage as you slowly press down on the chuck to loosen it. [substeps] Keep your eye on the chuck while you are tightening it. (C) Twist the chuck counterclockwise to loosen it. Another option is to pull the trigger gently while holding the chuck. (D) Begin to tighten the chuck by turning it clockwise so that the chuck remains firmly in place. Use your wooden allen or long-handled allen key to turn the chuck clockwise until it is firmly within the drill's circle.
[A]: C

[Q]: [header] How to use metallics in your wedding decorations [title] Decide how bold a statement you want to make with metallics. [step] In most cases, metallics work best as small accents in your wedding decor. However, you can use larger splashes of metallics to make a bolder statement. <sep> (A) Choose a bolder statement color for your decorations. [substeps] Red, orange, purple, black, and plum are the most common metallic colors used in any wedding decor. (B) [substeps] For example, you might want to create a statement like a star, necklace, and flower in your wedding color scheme. You may want to try a solid color such as brown or ivory. (C) Keep in mind that your decor will have a more dramatic look, though, so a heavy dose of metallics is more suited for a formal or evening wedding. [substeps] If you want to go heavy with metallics in your decorations, it's best to pair them with a neutral color palette. (D) Go for more of a statement by drawing out bold combinations of colors that a person could use with metallics. [substeps] Bright, bold, and flashy colors like neon and bubblegum yellow are great accents.
[A]: C

[Q]: [header] How to clean a room fast [title] Identify your goal in cleaning a room. [step] Cleaning means different things to different people. You're going to have to identify, first, exactly what you want to do. <sep> (A) You'll also have to figure out how you will make the finished project clean up. [substeps] Make a list of all the other goals you are working toward. (B) When deciding on your goal, think of the audience. Do you just want it to be clean for yourself, or for guests? Also, the level of " clean " will necessarily be restricted by the amount of time you devote, so keep that in mind. (C) Then, it's important to decide what kind of space you want to clean. Some people may say the bedroom is the most quiet place in the house, while others may suggest having a quiet space in the living room. (D) Start by identifying what your goal is to do and how you need to do it. [substeps] If your goal is to clean a bathroom, for example, you might focus your cleaning on combing the shower drain.
[A]:
B