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". 

[EX Q]: [header] How to make a sleeveless shirt [title] Choose which shirt you would like to make sleeveless. [step] Almost any shirt lends itself to becoming sleeveless, but there are some common options. [substeps] T-shirts old blouses long-sleeved shirts [title] Turn your shirt inside out and lay it on a flat surface. <sep> (A) [step] Cut along the fold so the front of the shirt is close to the seam. [title] Lay a piece of duct tape across the seam. (B) [step] Roll up the sleeves so that they extend past your elbow and onto your shoulder. If you can, collect some excess material in a bag or pick it up from the floor and then place it back over your shoulder. (C) [step] This can be a small table, a textbook, or a pile of paper. Because this is the shirt with the sleeves rolled off to the side, it should be close to the outside of your shirt. (D) [step] It is important that the surface is flat so that you cut the shirt evenly. [title] Cut strips into the sleeves, perpendicular to the seam.
[EX A]: D

[EX Q]: [header] How to change trackpad settings on macbook pro [title] Find the system preferences. [step] Starting from your main desktop screen there are two ways to find the system preferences where the mouse and touchpad settings will be located : [title] Bring your cursor to the bottom screen and find the system preferences application. [step] The icon looks like a box with three gears inside it. <sep> (A) Open that to find all your system preferences. [substeps] Alternatively, you can use the spotlight feature. (B) On macbook pro this icon resembles a round blue square with a horizontal green dot on it. On other applications this icon is actually a box with a gear, and is small in appearance. (C) It can be located on the taskbar or in the upper left-hand corner of the window. [title] Let the system preferences application perform its work. (D) [title] Click the customize key in the dialog box. [title] Follow the on-screen instructions to change the customization function.
[EX A]: A

[EX Q]: [header] How to wire a potentiometer [title] Identify the 3 terminals on the pot. [step] Position the pot so that the shaft is facing up towards the ceiling and the 3 terminals are facing towards you. With the pot in this position, you can refer to the terminals from left to right as 1 , 2, and 3. <sep> (A) [title] Twist the wire loop located on the bottom of the pot counterclockwise on its side. [step] Twist counterclockwise at each terminal starting on the bottom left terminal. (B) Make a note of these labels, as it can be easy to lose track of them when repositioning your pot while working. [title] Ground the first terminal of the pot. (C) [substeps] This is what you'll be wiring the pot to. When handling wire projects, make sure to place it so that the tips meet in the center. (D) [substeps] Stand the pot on its side to look at the terminals. Plug one end of the voltmeter into the terminals on the bottom.
[EX A]:
B