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 get rid of migraines [title] Learn all you can about migraines. [step] Nobody knows exactly what causes migraines. A lot of research has gone into the exact cause of migraines, but with little success. <sep> (A) People who experience migraines regularly have been having regular consultations with doctors and they still don't know what is causing them. Anything you experience requires some much-needed research or hypnosis to rule out any medical issues or underlying conditions. (B) Migraines result from a lack of sensory focal points or groups. They occur in fewer than three brain groups. (C) Just finding out what causes them will give you some tips on dealing with them. [substeps] Most people develop migraines because they have no symptoms or aren't able to respond to stimuli. (D) It is generally agreed upon that the trigeminal nerve plays a role in migraine pain. The trigeminal nerve is a cranial nerve that facilitates a major pain pathway.

Ex Output:
D


Ex Input:
[header] How to adapt your bathroom if you're blind or visually impaired [title] Create a place for everything. [step] If you are blind or visually-impaired, it is important for you to be able locate the items you need in your bathroom. In order to do this, you must create an organizational system. <sep> (A) Arranging your furniture in a way that makes sense to you is crucial for helping you know where everything is. If you don't have an organizational system, make some by placing some of your favorite items along the counter or toward the bathtub at home. (B) This way, you will always know where to find things. [substeps] For instance, you might store towels and washcloths on one shelf in your bathroom, and soaps and cosmetics on another. (C) The more organizing you make, the more time and energy you will be able to spend in your bathroom. [substeps] Try setting up a spot where you can actually see something. (D) This will be based on how you do your business. [substeps] Make sure your appliances are separated from your bathroom.

Ex Output:
B


Ex Input:
The guy now scoops up some snow in the shovel picks it up then dumps it a couple of times. The guy use the shovel to clean the snow of the top of his bushes. finally the guy <sep> (A) tosses his last snow he scooped up. (B) finishes and gestures towards the shovel, turns and walks off. (C) brings his shovel over and we see it's the same shovel. (D) sets aside the shovel and lifts up the shovel and goes back to doing work.

Ex Output:

A