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". 

Example Input: [header] How to remove hair from your throat [title] Try to swallow the hair. [step] If you suspect that you have one or two hairs stuck in your throat, try to just swallow them. The hair will travel through your digestive tract like food does and your body will excrete them. <sep> (A) Pass the hair around your mouth under your tongue until you see no more hairs. It's important that you close your mouth as tightly as possible so that the hairs don't come back. (B) Sucking in the hair will leave your throat full of the hair. If the hairs are stuck in your throat, then you might want to rub a cotton ball or toilet paper over your throat to help get rid of the hairs. (C) This will open up the glycerine lining in your throat and prevent anything from coming out. [substeps] Wait a few minutes to see if they're gone. (D) Your body will not break down the hair because it's made of keratin, a dense protein. [substeps] If it feels like the hair is long, see if you can use your clean fingers to pull the hair out of your throat.
Example Output: D

Example Input: A gardener is shown trimming very tall bushes with a gas powered trimmer that he plugs in and gets ready. He turns a few dials and gets to cutting some more of the surrounding bushes. he <sep> (A) appears very happy with his efforts watching up close while clipping the very tall hedges that has a special effect. (B) trims up and down the length of them with precision and accuracy. (C) goes back and forth with the trimmer while still cutting the hydro leaves, trimming them with a hand cutting tool, cutting the bushes, and trimming them with a stone powered trimmer. (D) cuts straight through the beginning raking the leaves and an older man walks in and takes a look at the clipping.
Example Output: B

Example Input: A woman dressed in a black top is talking about american grooming services for pets. she <sep> (A) is shown with a box for grooming around pets as one of the dogs runs through and through the measures. (B) demonstrates all the various grooming services that her company provides for pets. (C) pets the dog who is grooming the other woman on a silver vehicle. (D) has a floor plan with pictures of dogs and smiling and walking across the floor continuously.
Example Output:
B