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:
A male stylist talks as he smooths a woman's hair. He then demonstrates how to cut and style her hair, clipping it as he goes. when he <sep> (A) is finished, he talks some more with a full set of hair tools. (B) is done, he blows her hair dry and gives it it's final styling. (C) 's finished, he begins shaving the sides and ends by wearing a barber chair next to an instrument. (D) is finished, the woman goes inside and cliffs her hair to make the braid look interesting.

Ex Output:
B


Ex Input:
[header] How to ombre paint a dresser [title] Decide upon a horizontal or vertical ombre effect. [step] Ombre painting simply means painting in a gradient, employing different shades of the same color to create the effect of fading. Before painting your dresser, decide if you want to create an ombre effect from top to bottom or from left to right. <sep> (A) [substeps] Horizontal ombre painting means painting up and down, crossing between shades of black and white to create a rainbow effect. Vertical ombre painting means painting one long, continuous shade of black to create a sun effect. (B) [substeps] Shaded shades are generally the brighter and fatter shades, while shades of metallic color may tend to lend the illusion of an ombre effect. [title] Lay your dresser on its side and extend it to the top. (C) [substeps] If your dresser has drawers stacked vertically, you can paint each drawer face a different color. This will make top-to-bottom ombre much easier. (D) In some cases, all you need to do is paint side and right for various shades. In other cases, though, you may only paint the outer edge of the dresser or have it to either to the right or left, depending on your model.

Ex Output:
C


Ex Input:
[header] How to make a golden retriever stop barking [title] Figure out why your dog is barking. [step] Golden retrievers, like any other dog, communicate verbally. Of course, they can't talk, so instead, they bark. <sep> (A) If you really care about your dog's well-being, however, you should identify the source of your dog's barking : [substeps] Harness. Harnesses are bands of plastic that fit over your dog's muzzle. (B) There are many types of barking, which are attempts to communicate different ideas and feelings. Understanding what your dog is trying to tell you is the first step to stopping it. (C) In order to figure out exactly why your dog is barking, you will need to find out. [substeps] Your dog is barking out of one of two things. (D) Unfortunately, the facts about dogs are a bit vague, but they have some common breeds. [substeps] The common bark is a small " z " sound that we use to express pleasure.

Ex Output:

B