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".

[Q]: [header] How to treat ingrown eyelids in dogs [title] Look for squinting. [step] Squinting is an easily recognized sign of eye irritation. Your dog may squint if it feels like there's something in the eye that it can't get out. <sep> (A) In this case, the ingrown eyelid is causing the eyelashes to rub directly against the eye. If you can't tell if your dog is squinting, compare the size of your dog's irritated eye to the other one. (B) This is not always an indication of eye irritation. It's often the case that tears will build up within the eyelids, which can cause the eyes to appear unfocused and dry. (C) It may also display its eyelids twitching or blinking repeatedly. Some dog owners find it embarrassing to have their dog squint because of its inability to see. (D) Visit your vet if you notice : [substeps] Squinting irritation blockage of the eye. This is the case with retinitis, which causes squinting.
[A]: A

[Q]: [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.
[A]: B

[Q]: [header] How to make sumptuous snow white delight [title] Place an 18 centimeter (7.1 in) loose-bottomed cake tin on a sheet of grease proof paper and draw around it. [step] Cut the circle out. Dip a piece of kitchen towel into a little butter and rub it inside of the tin, then pop the paper circle into the base of the tin. <sep> (A) Fry enough of the butter to dissolve, but not so much that it pools around. Press the baked cake gently onto a greased cake tin. (B) As soon as the bottom of the tin rings up, tap the area off with a hammer. [title] Roll the cake tin's base in icing or cream, depending on your own tastes. (C) [title] Break the chocolate into a saucepan, then add the butter and condensed milk. [step] Melt these ingredients on a low heat. (D) [substeps] Discard the paper when done to save it for future piping activities. [title] Fill a smaller cake tin with 4 inches (1.2 cm) of snow white.
[A]:
C