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". 

Example Input: [header] How to give first aid to an electrocuted animal [title] Remove the electrical source. [step] Before touching your pet, turn off or remove the source of electrocution. This will involve unplugging the electrical cord from the electrical socket and/or shutting off the electricity. <sep> (A) [substeps] The electrical cord wrapped around the electrical socket may be part or all of the animal's body. These will be treated separately from the rest of the animal. (B) [substeps] It may be possible to take your pet outside for this step. But be sure to call your veterinarian before doing this. (C) [substeps] Use a wooden broom handle to gently move your pet away from the electrical source. A wooden broomstick is ideal because it would not conduct an electrical current that would shock you. (D) You will still have to make sure to perform an indirect shock first. [title] Place the animal on a vinyl or glass surface.
Example Output: C

Example Input: A black screen appears and the yellow words appear on them read "extreme how-to presents". The second black screen has yellow words that read "installing heated floor tile". a man <sep> (A) is now standing and talking in the corner of a residential home, dressed in a long sleeved button up black shirt, brown long pants, shoes and wearing a hat. (B) is installing the hardwood floors. (C) starts sweeping the floor in a position and putting gel between the tiles. (D) is shown attempting to installation tile in various rooms, including the top floor.
Example Output: A

Example Input: A male gymnast in a blue outfit applies chalk dust to his hands. an infographic <sep> (A) appears, showing his name to be danell leyva from the usa. (B) graphic article explains that arms piercing of some kind sharpened the metal. (C) screen appears on the screen showing the basic formation of an x-ray of a floor. (D) graphic comes up with layers of dust that looks like they should be grab a cooking pot and then rub it on with a cloth.
Example Output:
A