instruction:
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". 
question:
[header] How to style hair with hot rollers [title] Get the rollers ready. [step] Go ahead and plug in the hot rollers so that they're fully heated by the time you're ready to put them in your hair. If this is your first time using your set of rollers, read the manufacturer's instructions to make sure you use the equipment properly. <sep> (A) [title] Spray your hair with gentle hold hairspray. [step] Start with dry hair, since your hair won't hold curls if you use this method with wet hair. (B) [substeps] Always hold the handle of the steam wand between your wrist and the rollers. Never hold the handle of a curling iron at a normal straight line. (C) [substeps] Make sure your hair is fully washed and dry to avoid taking off any primer or styling gel. [title] Brush your hair while in the rollers. (D) [substeps] For thicker hair, use an extension. If your hair is thick, use an extension with one end attached to the round back of your hair.
answer:
A


question:
[header] How to warm a horse's bit [title] Dunk in hot water, then wipe dry. [step] Heat water until it's just begun to steam, then bring it over to the stall in a bucket. Place a safety hook over the bucket and drape the bridle over it, making sure not to let the leather touch the water or the ground. <sep> (A) Dunk the bit for 10-15 seconds in hot water, or 1-2 minutes in lukewarm water. Wipe the bit down with a cloth to dry it. (B) Try to keep your head at least six inches from the water. The halter and bridle should be crimped, not tightened, to avoid fraying. (C) [substeps] You don't want the bridle to get hot. If this happens, you need to bring a band-aid or thick covering of newspaper over the cloth. (D) Smooth out any wrinkles so the bridle stays in place. [substeps] When you go to wash the bridle, look in the mirror to see if it fits.
answer:
A


question:
[header] How to bleed an oil furnace [title] Turn the furnace off before starting any work on the fuel pump. [title] Locate the bleed screw on the fuel pump near where the fuel line comes in. [step] The screw is usually a small nipple-like screw. <sep> (A) Look inside to make sure it doesn't have to be taken out using pliers. [title] Find the bleed screw under a piece of plastic wrap. (B) There may also be a screw on it near the port. These can be used for other screw fires, such as for a pressure washer, gas pump or other uses. (C) [title] Place a small bucket or pan under the bleed screw. [step] The bucket will catch any fuel that sputters out as you bleed an oil furnace. (D) If it has a thick lip, you'll need to use a pick to break it up. [title] Find a hot plate you can stretch over the bleed screw.
answer:

C