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]: The man begins by scraping ice and snow off of the bottom of his windshield and the hood of his car and front grill. the man <sep> (A) then complies and drains ice from the sides. (B) dips a sponge into a liquid that gets in between the cars windshield. (C) then wipes the snow off his windshield and gets in his car crawling around. (D) then scrapes and kicks at ice chunks surrounding the area around the front passenger tire.
[EX A]: D

[EX Q]: [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.
[EX A]: C

[EX Q]: [header] How to build a natural looking waterfall with a filtrific vanishing water system [title] Determine the path of the water feature. [step] When mapping out the path of your water feature, consider bends in the stream and waterfall drops. A natural looking stream channel should appear " ageless, " as if it has always been there. <sep> (A) [title] Figure out how thick the waterfall is. [step] Decide if it is a horizontal waterfall or an uphill stream, as natural looking streams typically come apart easier. (B) This opens up the drop space for the waterfall. [substeps] Your waterfall should look like a river channel with a naturally flowing stream, and be easily identified from sight. (C) [title] Determine where the current is pulling you. [step] By determining how the current will drag you, you determine how likely you are to build your waterfall. (D) To best accomplish this, choose a location with a slope. If you don't have much of a slope to work with, as an alternative you can choose to create water flowing from a boulder or rock grouping.
[EX A]:
D