instruction:
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". 
question:
[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.
answer:
B


question:
[header] How to ask survey questions [title] Understand your objective. [step] Make sure you know why you are asking questions in the survey. Having a firm grasp of this will help you make better questions. <sep> (A) Without knowing your objective, your questions may seem aimless. [substeps] Try to answer the questions: who, what, where, when and why for yourself. (B) [substeps] However, you may not have a completely clear and accurate understanding of your evaluation topic. You may need the fact-figure accuracy to have a clear and reliable assessment. (C) You can additionally foster a good relationship between you and the question that came up. [substeps] Once you have developed a rapport with the question, you should begin addressing it. (D) [substeps] Determine whether the survey may be a waste of time. If the survey results in a huge number of questions, it will be better for you to leave some questions blank or to completely miss the question's significance.
answer:
A


question:
[header] How to heat sake [title] Know when to heat sake. [step] Nowadays, premium sake is usually served chilled instead of warm. If you have a less expensive type of sake or simply want to draw out a different dimension of flavor, though, you can try heating it before serving it. <sep> (A) This can be an especially good option for a cold winter day. [substeps] Heat causes the alcohol to vaporize. (B) Always check reviews and cookbooks on quality sake. Always check the character of sake before serving it. (C) That will give you the best desired flavor and no pain or damage to your sake at all. This way, you won't have to adjust the temperature. (D) To work this way, reduce the size of the container or pot of sake. [title] Allow the sake to heat until you notice condensation building up on the outside.
answer:

A