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 treat cold sores in your nose [title] Figure out if you have cold sores in your nose. [step] Because it is difficult to see inside of your nose, you may need to figure out if you have cold sore instead of another condition such as an ingrown hair or pimple. Checking the areas in and around your nose can help you figure out if you have cold sores in your nose. <sep> (A) [substeps] Check your nose from the bottom of your nose, just in front of your cheekbone, towards your chin. If it feels numb, there is probably something there. (B) [title] Determine if you have a stuffy nose. [step] In your nose, you may need to take some pressure off of the bridge of your nose and see if that pressure is gone or causes the discomfort. (C) [substeps] Use a mirror to check the visible surfaces of your nasal cavity. You may not be able to see much, but even detecting a cold sore can help. (D) [substeps] To figure out if you have cold sores, you may be looking in your nose. Either look back at the corner of your nose, or look to the floor.
answer:
C


question:
[header] How to start a taxi company [title] Investigate whether there's a need for a taxi company in your area. [step] In smaller towns, the demand for taxis usually isn't so high, so considering a different location to start a taxi company might be a wise choice. [title] Determine your niche. <sep> (A) [step] What is the ideal type of taxi company or whether the need is a strong job market. However, there's also a reason you could (and probably should) start a taxi company for a fee. (B) [step] Taxi companies and vegans have a pressing concern in their treatment for foreigners in countries. Decide what you wish to be used for based on your niche and behaviors when applying for a taxi company. (C) [step] Though most taxi companies cater to all types of customers, there are those that cater to high-end clientele such as politicians, diplomats, and executives. Other taxi companies offer adapted vehicles for the physically impaired, while yet others provide green taxis for environmentally-conscious customers. (D) [step] To start a taxi company, you will first need to determine your own niche, and how much money you're willing to spend on the service. This is where you'll be able to make the hiring process go more smoothly.
answer:
C


question:
[header] How to win a custody battle [title] Figure out where you are in the case. [step] This article assumes you have already filed for custody and attended any court-ordered mediation. If you haven't, then you shouldn't assume you are in a " custody battle. <sep> (A) " there is still time for you and the other parent to agree on child custody. You can draft a parenting plan and file it with the court. (B) " there are concerns that make it difficult to win custody because of the rights and responsibilities of non-custodial parents and grandparents. But you should determine the following and evaluate whether you have the time and attention to settle, if your case is highly contested. (C) " however, you can explore alternate versions of the case in order to see where you were at the time you filed for custody. For example, you might be in a case where you were married, or you might not have been in court the whole time when you entered custody. (D) " instead, you can just assume you have been negligent and are holding onto the original custody agreement. [substeps] Custody battles usually are contested if the plaintiff is trying to regain custody.
answer:

A