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 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.

Ex Output:
B


Ex Input:
[header] How to make a cow cake [title] Shape the cakes. [step] You'll need a head, nose and ears to form the cow cake as a whole. Prepare each cake as follows : [substeps] Trim around the top rim of the smaller cake. <sep> (A) Then cut a crescent shape from one side. You should be left with a slightly off-centre oval shape. (B) Pinch the top rim of the larger cake closed. Make sure that the top rim is lined with icing. (C) You'll want to end up with six cakes. If you want a bigger cake, place the smaller cake on your table or set it on the rack. (D) Cut two holes around the circumference of the bowl side. Make a circle inside the side of the smaller cake.

Ex Output:
A


Ex Input:
[header] How to make a healthy breakfast bowl [title] Choose your base ingredient. [step] When choosing a healthy base ingredient, it's best to find something high in protein, fiber, calcium, and iron. You don't need to choose a base loaded with each of these nutrients, but selecting a base that is high in one or two will give you a lot of nutritional value. <sep> (A) [substeps] Protein-rich breakfast cereals (rice, hard boiled eggs, flavored milk and yogurt) should be a balanced selection. Protein is higher in fiber, calcium, iron, and omega-3 fatty acids. (B) [title] Pre-heat the oven to 350 ° f (177 ° c). [step] Once the oven has been preheated, it's ready to bake. (C) Try to keep saturated and trans fats, sugar, cholesterol, and sodium low. [substeps] Generally, yogurt is high in calcium and protein, especially greek yogurt. (D) [substeps] Some serving sizes include about 50% protein , 2% fiber, and no fat. Go for a base of about 2 , 300 g or about 1 cup per serving.

Ex Output:

C