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 dry a dog [title] Allow the dog to air dry naturally. [step] This is the easiest and most enjoyable way for the dog to dry. After getting wet, the natural reaction of many dogs is to shake from side to side with great vigor to release the water. <sep> (A) Dry the dog by waving a towel near the dog and holding it in front of him as you shake. Dry dogs naturally shake after an accident, while dirty dogs are especially prone to shake from side to side. (B) This helps air to flow through the dog's body and speeds the drying process. [substeps] Letting your dog dry upside down with its chest out can help with this. (C) In less than 4 seconds of shaking, dogs can shake up to 70% of the water from their fur. [title] Stand back and allow the dog to shake the water from his or her fur. (D) To encourage this, your dog has to naturally dry themselves faster because you are taking a short nap before allowing him to dry itself. [substeps] Wait until after a shower or bath to air dry your dog.
[EX A]: C

[EX Q]: [header] How to make a home safe for toddlers [title] Use cabinet and drawer child latches to keep little hands out of poison and sharp items. [step] Keep heavy items locked away or well out of their reach. If oven doors are not lockable, buy a latch to keep them shut unless you want to watch your child at all times when baking. <sep> (A) [title] Use childproof latches for household repairs. [step] They can be safely locked, or were given, because they' stay safe' at the end of a hallway or adjoining small room. (B) [title] If you can, leave some items accessible to toddlers that are safe. [step] They can bang on pans or sort your plastic storage containers while you cook or clean. (C) [title] Refrain from leaving your baby inside for long periods of time. [step] Children with small hands and easily handled hands can become allergic and can even choke on poisonous foods and vegetables. (D) Lids are very fragile and we should avoid turning them on or checking the lock. [title] Use holes big enough to allow ventilation, light from the oven, and a childproof bulb for the door.
[EX A]: B

[EX Q]: [header] How to stain floors [title] Repair obvious defects such as nail holes, cracks or gouges in the floor using a wood putty or filler. [title] Sand floor in direction of grain of the wood. [step] Use a floor sanding machine and edge sander or sand by hand. <sep> (A) Sand until wood grain remains smooth and crumbly for the time being. [title] Use a large piece of plywood or piece of double-sided lumber (if possible) to cover the area you will stain-this will prevent work marks from getting in. (B) If sanding by hand, use 3 different grits of sandpaper , 30 , 60 and 80. Vacuum floor between each sanding and when finished. (C) [substeps] These sanding machines are designed to remove the grit a step by step so your floor is the shiny shine after sanding. Wood putty or a putty compound can also be used in an adhesive for added shine or leg insulation to improve your budget. (D) While grit is preferred, it makes the floor smoother overall. Sand the floor with the grain grain until it is well smooth but not rough.
[EX A]:
B