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 Input:
[header] How to choose a dating site profile picture [title] Let them see you. [step] A profile picture's main purpose is to let potential matches see you. Because profile pictures tend to be small, you might want a picture of just your face or your shoulders and face. <sep> (A) Alternatively, you could create your own photo that includes the only aspect of your face that is not too large. [title] Optimize the picture to serve as a place to get ideas. (B) ( this is probably too self-deprecating and rather a trap for the stalker. ) showing them your face lets the potential date know exactly why you are happy with them. (C) That way, they can see you easily without even clicking on your profile. [substeps] That means getting an up-close picture. (D) And as a profile image can be a good way to portray your personality and show potential dates or non-potential matches, you should also have a picture of you together. You can use any picture of you as your profile picture if you have access to the internet.

Ex Output:
C

Ex Input:
[header] How to end an email [title] Reaffirm your purpose for writing. [step] This isn't necessary for short emails or quick responses to someone's question. If you wrote a long email, though, or if you are dealing with multiple subjects or concerns, add a brief concluding sentence to summarize your information or request. <sep> (A) The ending sentence will let the recipient know what you included and why. " i have an article to talk about and you want me to verify that my account is up to date " is a good example of ending an email. (B) [substeps] If, for example, you are applying for a job, you may include information regarding your credentials and experience. You can then summarize your email by writing, " based on my background and experience, i believe i would be an excellent candidate for this position. (C) Then, look at the subject line you write about to see what your concern is. [substeps] For example, you might write, " appointment. (D) For example, if you email an email about a problem, you might write: " i wanted to apologize for treating the problem such as the late termination. " [substeps] This doesn't have to be specific.

Ex Output:
B

Ex Input:
[header] How to clean granite countertops [title] Prepare countertops for proper cleaning. [step] Before you begin to actually clean the countertop, remove excess debris and move appliances or items so you can reach all areas. [substeps] Wipe up any spills or sticky residue on counter. <sep> (A) The best way to avoid staining your countertop is to remove liquids or sauces immediately from your countertop. If the liquid has set, use a hot wet rag to loosen and remove the caked on debris. (B) Wipe up any favorite color color or item. Also wipe up any spills in the cookware. (C) Wash work surfaces with soap and water and scrub surfaces which have accumulated dirt. Prepare a new countertop surface when it becomes chipped, broken or clogged. (D) Wipe up any spills with a damp kitchen sponge or rag. Use a garden hose to move cleaning supplies away from the countertop.

Ex Output:
A