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".
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Question: [header] How to install custom firmware [title] Record the router's model and version number. [step] These numbers are usually located near the manufacturer's logo, underneath or in back of the router. Write down the model and version information for future use. <sep> (A) [substeps] If you are using windows xp (default operating system), the model number can be found in the start menu under " system settings. " skip all the discussion menus, and then go to system preferences. (B) [title] Obtain the router's ip address and default gateway for your computer system. [substeps] Determine the ip address and default gateway for a pc. (C) [substeps] " w " with the green background is the serial number for the model. " p " with the red background means " unhappy operating system. (D) [substeps] It is easy to determine what operating system is running on your router if you don't know the model. Copy the model from the registry to convert it to your operating system.

Answer: B

Question: [header] How to use pomade [title] Pick between oil based or water based pomade. [step] Oil based pomade is the more traditional choice, but water based is a bit more popular. The choice depends on the look you're going for with your hair. <sep> (A) [substeps] Oil based pomades tend to be the a bit less expensive than water based pomades. They give a much greasier and shinier look than water based, and they typically have a much stronger hold. (B) When you can opt for oil based, your hair will have the smooth, glossy look you want. If you want the pomade to have a more polished finish, look for a one sided pomade. (C) [substeps] Oil based pomade may look great when you put hair in a ponytail or bun, while water based pomade doesn't add much volume and requires much more work. Other oils low in taste, such as coconut oil can make hair easier for you to twist and style. (D) [substeps] For medium length hair, shave your legs down to your toes to style it nicely. For longer hair, shave a small pile of hair up about half an inch in front of your face.

Answer: A

Question: [header] How to handle a parent with ptsd [title] Connect with them regularly. [step] When someone has ptsd, they might self-isolate, turn down or cancel plans, or just try to be alone as much as possible. However, social support protects against ptsd and can help to mitigate and lessen their symptoms drastically. <sep> (A) [substeps] If you have free time, start by hanging out with a friend who has ptsd. Have them text or call each other and let them know about their condition. (B) Continue calling your parent regularly to check in, drop by to see them if you live nearby, and invite them to hangout with you. [substeps] Call them every few days and say something like " hey mom, what's up? I was just thinking about you and wanted to call. (C) [substeps] This can save you time and money. You'll be in contact with them less frequently, not leaving them hanging for hours on end. (D) [substeps] Invite them over for a chat if they'd like. In the us, getting to know one another is important.

Answer:
B