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 Q]: A person is seen shaving the head of a person seen in a chair in front of him. The person brushes off his hair and then signs his name on a piece of paper. more men <sep> (A) are seen shaving their heads and one speaks to the hair stylist on what he wants. (B) are seen speaking to the camera and leads into a clip of a man walking on a slack line. (C) are seen being dressed up as barber ladies and speaking to a woman in front of a mirror. (D) are seen into the camera as they talk to one another and lead into a man getting a tattoo on someone's leg.
[EX A]: A

[EX Q]: [header] How to defrost bread [title] Thaw out as many slices as you'll need. [step] If you're only going to use a portion of your sliced bread, it's best to defrost that portion only. Thawing out an entire loaf of sliced bread when you only need a few slices will require you to either consume the rest of the loaf or refreeze it. <sep> (A) [substeps] Refreezing bread repeatedly can dry the bread out, making it hard and/or stale. Set aside as many slices as you'll need to defrost and save the rest in the freezer. (B) It shouldn't take more than 1 hour. [title] Squeeze from a plastic bag if you don't have a plastic bag. (C) [substeps] This method works best with a large amount of bread. Defrosted loaves may tear, which can cause it to cook unevenly. (D) [substeps] Thawing out or leaving the bread cold won't help defrost the bread. It only makes it smell bad when it's ready.
[EX A]: A

[EX Q]: [header] How to teach your dog to heel [title] Find a quiet place to train your dog. [step] You want to eliminate distractions, so that your dog can concentrate on you easily. If you have a backyard, that is the perfect place to train your dog. <sep> (A) Otherwise, find a quiet corner of a park with few other people or pets. If outdoors is too distracting, start inside. (B) However, if you have a big backyard, that may not be a good idea. You want to build up flexibility, so make sure your fenced in area or your backyard is not far from your dog's park or home. (C) However, you should never put your dog in a fenced-in yard. Additionally, you cannot put your dog in a shelter for two reasons. (D) Choose a place where your dog can stand and extend the leash lightly, pulling it close to your side of the yard. Now it is time to get this training started.
[EX A]:
A