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:
A lady in a bra and panties grabs and throws a shotput. It goes through a window on a house and a cat runs. the man <sep> (A) runs after the gun. (B) in a grey shirt tells the lady to stop and gather her clothes, including the fire extinguisher, including two buckets of water on a table. (C) is talking and a traceback in the room and come to 2 shades of grey and he starts to make some shots. (D) looks outside and sees the lady.

Ex Output:
D

Ex Input:
[header] How to rid your horse of mud fever [title] Clean your horse's legs regularly. [step] Look at your horse's legs every day for any signs of irritation or scabbing. If you notice irritated skin or scabs, clean the legs with a good quality soap, like a chlorhexidine scrub preparation. <sep> (A) [substeps] Shower after strenuous physical activity or in the middle of the day as well. If the place used to be your barn, walk around from there to avoid putting foot on the dirt or stepping on the mud. (B) Rub the soap over your horse's legs to keep stains and dirt at bay. [substeps] Get on your horse's right side and lean over their shoulder. (C) Rinse your horse's legs and apply enough of the chlorhexidine to cover the area. Gently wash the legs and rinse off the cleanser. (D) Make sure you clean the animal thoroughly before putting the saddle on. [substeps] Wet the affected area with warm water and washcloth.

Ex Output:
C