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 effectively use email at work [title] Allocate specific times of the day to read and respond to your e-mail. [step] If you don't stay in control of checking your e-mail, you may end up wasting too much of your work day checking it. Try to respond to emails immediately. <sep> (A) While you can use your email system to get more emails, remember to adjust your work email usage to accommodate any change in time. [substeps] Use social media to check your e-mail and read your e-mail. (B) [title] Organize your email whenever you are in it. [step] Effective use of work email includes deleting emails you know you won't need as you read them and filing those that you will need in specified folders. (C) Staying in control of your personal email should be your top defense when handling an in-office correspondence. [title] Identify your e-mail's subject line. (D) Or try to set an automatic schedule to read them at other times. [substeps] Plan to read at least once a day, unless you work on a busy schedule.
Example Output: B

Example Input: [header] How to recognize signs of senile dementia [title] Check for memory loss. [step] Everyone forgets things from time to time. However, dementia sufferers may have difficulty remembering recent events or familiar routes and names. <sep> (A) Symptoms commonly associated with dementia include : [substeps] Memory loss: selective memory of information. More detailed information could be remembered later, but difficulty recall is more likely. (B) [substeps] Everyone's memory is different, and occasional forgetfulness is common among the general population. Family members and close friends typically will be the best judges of changes in behavior from what he or she was like previously. (C) Some people who have dementia make bizarre or strange memories. For example, they may remember that you are going to their house only after they have returned from their vacation. (D) One common symptom of senile dementia is a loss of memory. A person who stutters on words or can't think well may also suffer from memory impairment.
Example Output: B

Example Input: [header] How to make a dynamite roll [title] Gather up the items from the list of ingredients. [title] Put saran wrap around a sushi rolling mat. [step] This will prevent the rice from sticking to the mat. <sep> (A) [title] Take a sheet of aluminium foil and fold it in half. [step] Place the wooden roll of the rice on a baking sheet. (B) [title] Dip your hands in clean water so that your hand will not stick onto rice or any other ingredients. [title] Put a piece of seaweed on the mat. (C) [title] Find pieces of mat about 2 feet (0.9 m) long. [step] Cut off all trace of the mat's design, so that you are left with strips of patterned mat, to choose from. (D) [title] Put rice at a diagonal in the center of the mat. [step] If you don't have a mat, the mat rolls itself.
Example Output:
B