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 Q]: [header] How to cure swollen gums [title] Talk with your dentist. [step] Make an appointment with your dentist if you notice that your gums are bleeding or irritated throughout the day. You can also bring up this issue with your dentist when you see them every 6 months for a cleaning. <sep> (A) [substeps] You can also get a referral to a dietician who specializes in simply treating swollen gums at home. They may be able to diagnose swollen gums by looking at how your gums feel. (B) You can ask that your dentist discuss all of the possible treatment options with you. [substeps] Your dentist will likely order annual x-rays for you. (C) Dentist visits will help clear up any bleeding and ease your pain. [substeps] Some gums naturally bleed after eating. (D) You might end up visiting your dentist twice a year for repeated cleanings. [title] Avoid gum infections if you suffer from a periodontal disease.
[EX A]: B

[EX Q]: [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 A]: C

[EX Q]: [header] How to defrost bread [title] Thaw out as many slices as you'll need. [step] If you're only going to use a portion of your sliced bread, it's best to defrost that portion only. Thawing out an entire loaf of sliced bread when you only need a few slices will require you to either consume the rest of the loaf or refreeze it. <sep> (A) [substeps] Refreezing bread repeatedly can dry the bread out, making it hard and/or stale. Set aside as many slices as you'll need to defrost and save the rest in the freezer. (B) It shouldn't take more than 1 hour. [title] Squeeze from a plastic bag if you don't have a plastic bag. (C) [substeps] This method works best with a large amount of bread. Defrosted loaves may tear, which can cause it to cook unevenly. (D) [substeps] Thawing out or leaving the bread cold won't help defrost the bread. It only makes it smell bad when it's ready.
[EX A]:
A