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 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.
[EX A]: C

[EX Q]: [header] How to spot an online scam [title] Ask yourself: do they require you to pay money up front? [step] If they are requiring any sort of up front payment to use their services, it is almost always a scam. Many of them will claim that it's for the cost of training, etc. Most of that is just lies. <sep> (A) More often than not, the scammer will take your money and run. [title] Ask yourself: do they promise that you will become rich overnight? [step] Let's face it. (B) They may also require you to pay them a fee to do the work of the scam. [title] Start by taking note of the offer terms. (C) If you fail to pay them back, they won't actually use the services they have. Sometimes, scammers simply want to get their money from you to start their scam. (D) Do not discuss this with anyone else, unless you know for sure that it is indeed a scam. [title] Determine whether you're being harassed.
[EX A]: A

[EX Q]: [header] How to make a pond [title] Decide what kind of pond you want. [step] What function will it serve? Think about the features you'd enjoy most as you begin constructing plans. The most common backyard ponds fall into one of the following categories. <sep> (A) [substeps] Think about specific factors that interest you. For example, you might want your pond to serve a wide variety of people and animals. (B) [substeps] A wildlife pond is perhaps the easiest type of pond to construct. It doesn't require a pump, so it needn't be close to a source of electricity. (C) [substeps] Backyard ponds are public ponds for swimming. Private ponds are specially designed to allow soft ponds to alternate under the water allowing shallow water to escape, if desired. (D) [substeps] A pond's function is governed by the needs of the child. If you intend to water plants for example, you'll need a pond to be well-stocked and well ventilated.
[EX A]:
B