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 lance and drain a blister [title] Assess the blister before choosing to drain it. [step] Not every blister needs to be lanced. In fact, some experts recommend that you should only drain blisters that are exceedingly painful, in weight-bearing or high-contact areas, or larger than 0.8 inches (2 centimeters) in diameter. <sep> (A) [substeps] If the blister is intact and manageable, try to keep it intact. Apply a piece of moleskin, adhesive felt, or tape. (B) In these instances, you need to check the blister to determine if it needs a leak-proof drain. [substeps] See the " how to drain a blister " section of this article for instructions. (C) [title] Make a decision whether or not to drain the blister. [step] If the blister is very painful, medical sterilization is an option. (D) [substeps] There is no one right way to do this, so you have to be sure that you have the right technique. It is not as easy to clean a blister as to rinse with water and applying a sterile dressing.
answer:
A


question:
[header] How to get super glue off skin [title] Select the right nail polish remover. [step] Acetone is the substance in nail polish remover that helps dissolve superglue for removal. You need an acetone-based remover in order for this method to be successful. <sep> (A) Too much acetone can cause further damage and discoloration, so look for an acetone-based remover that contains benzoyl peroxide. This form of treatment works best on especially dark blemishes, but you can also use this method for lighter polishes. (B) For the traditional " acetone-based " nail polish remover, create a thick, grainy layer on both sides of each nail. [substeps] Alternatively, you can soak a cotton ball in acetone and dab it up against the entire surface of each toenail. (C) [substeps] Check the ingredients label of your nail polish remover. Acetone should be listed here, usually towards the top of the list. (D) It may be injected directly into the concealer border or you can buy it online. You can use a nail art brush to apply the acetone, or dip a cotton ball in acetone-based remover and gently rub your skin with the cotton ball.
answer:
C


question:
[header] How to check whether your horse or donkey needs to see a dentist [title] Understand the impact of an equine's age on their teeth. [substeps] Equines have baby teeth and between the ages of two and a half to four and half years, horses will cut 24 teeth. An equine dentist should be asked to check that all of the teeth have been shed correctly and to check that the new ones are in good condition. <sep> (A) Older equines need equine dental care too. For a horse, teeth reach their life's end at around the age of 20. (B) [title] Encourage your horse to chew their teeth sparingly. [substeps] On particularly young horses, use daily dental care and work with your horse to spot signs of growth. (C) [title] Think about why your horse is in good condition. [step] There are many reasons a small animal might need to have a dental check. (D) [title] Observe the speeds at which the horse moves. [step] Do they move at a trot, canter, stop, or climb? [title] Monitor your horse.
answer:

A