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". 

Example Input: [header] How to stop payment on a lost check [title] Check your account statement. [step] Before you initiate a stop payment on the check, you need to make sure it has not yet gone through. If your bank has already accepted the check, a stop payment won't do you any good. <sep> (A) [substeps] If you are unable to get a stop payment from your bank, you may wish to consider trying one of several other banks. [title] Avoid checking checks after they've expired. (B) Other circumstances may warrant a stop payment, such as : [substeps] If you purchased a loan, you might want to deduct the balance. A stop payment will result in interest, which you then pay off. (C) [substeps] Typically it's easier to check your recent transactions on your online account, or on your banking mobile app if you have one. Make sure the check has not cleared, and also check your pending transactions to make sure it hasn't been presented yet. (D) If you believe it was lost, you can call the bank directly. [title] Confirm that you can't keep the check.
Example Output: C

Example Input: [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.
Example Output: B

Example Input: [header] How to save time in the morning [title] Shower at night. [step] This will eliminate one of your most time consuming morning rituals. However, those with oily skin might look best if they shower in the morning. <sep> (A) A hot shower can feel particularly good-and it opens up your pores, not just your eyelids. [substeps] When you have even a little time left in the day to do your morning routine, showering an hour before and after you go to sleep is no different. (B) This might work especially well for if you've had a bad day the night before, as a shower can help clear your pores and ensure you get a fresh start before the day begins. [substeps] Avoid hot showers, as hot water will block your pores and leave your face looking pale. (C) [title] Wash your skin every morning with your favorite product. [step] Even if you have oily skin, consider changing it. (D) Cosmetically, there is also a risk that you'll wake up to untamable hair. If neither of these are concerns for you, you still want to be careful to shower at least two hours before bed.
Example Output:
D