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". 

[header] How to numb a tooth [title] Take an over-the-counter-painkiller. [step] A painkiller like ibuprofen or acetaminophen should be your first step in trying to numb a painful tooth. These painkillers will alleviate the pain from your tooth, and should also decrease any swelling in the infected area. <sep> (A) [substeps] If you are not able to find ibuprofen, you can opt for acetaminophen instead. [title] Freeze food that contains aspirin. (B) [substeps] Ibuprofen can be applied within 30 minutes to up the duration of an over-the-counter painkiller. Follow the manufacturer's instructions and do not take ibuprofen within 30 minutes after it has been applied. (C) [substeps] Make sure you read and follow the dosage on the packaging. Do not eat anything until told to do so by your dentist to ensure you are following the proper dosage. (D) These are all readily available at your local pharmacy. [substeps] If you're treating a toothache in a child younger than 18, do not give him or her aspirin.
D

[header] How to pass the 11th and 12th grade in nepal [title] Start the plan. [step] In nepal, after completing the 10th grade (slc level) you're allowed to join the 11th and 12th grade. So all you have to do is pass the slc examination by the end of grade 10. <sep> (A) It'll be much helpful to you if you pass the examination with a distinction (80% or above). The slc exam is pretty easy if you know the basics of grade 10. (B) If you don't pass the slc exam, you become a naturalized citizen. This means that you must obtain two separate grades to take the 10th and 12th grade. (C) This is a requirement if you want to go to the best school in nepal. [title] Make sure to celebrate the 10th grade. (D) This is to show that you actually know what to study. It is less likely that you will not successfully pass the class and you could also get suspended by the other students.
A

[header] How to deal with an annoying boy [title] Write down what is annoying you. [step] For example, write down what he is doing that makes you frustrated. Some of his behaviors could hurt your feelings. <sep> (A) Writing this down will also help you think about what the future holds when you spend time with him, which can help you come up with a good strategy for dealing with his annoying habits. [substeps] Try to write down everything you are doing that bothers you. (B) Also mark any instances when you noticed him become rude; such as if he doodled in front of you and/or spoke to you at lunch. [substeps] If you don't have time to write down everything your annoying son/daughter says, try to come up with some solutions to his behavior. (C) Write down : [substeps] A loud noise a brief period of silence a loud rumor a disrespectful or comical conversation you had in front of him demanding to be heard a report of his or his cat biting him. Note any or all of the underlying reasons why he is annoying you. (D) For example, does he call you names? Other behaviors might be pesky but are not hurting you. For instance, does he constantly ask you to do things with him? For either type of behavior, there are ways to help.

D