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". 

[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.
D

[header] How to befriend dogs [title] Make sure the dog is friendly. [step] When approaching a strange dog, be particularly aware of its body language. If an owner is present, ask the owner if the dog is friendly. <sep> (A) Make sure the dog wants to be petted. You can easily alienate a dog by approaching one that is nervous or agitated. (B) If a dog seems hesitant to meet you or extends its hand to you, it's the opposite of friendly. [substeps] Avoid approaching a dog by walking near it and stopping so that the dog can see you. (C) Usually, a dog looks friendly when greeting a stranger but when the dog is not, try something more benign. [substeps] Some common signs of friendliness on dogs are legs waving, laughing, and shoulder-shaking. (D) Common signs of friendly behavior are not always direct stares. If a stranger approaches the dog, its body language may indicate a definite dislike.
A

[header] How to make pull apart garlic bread [title] Combine the water, sugar, and yeast. [step] Pour 1/2 cup (120 ml) of warm water into a large mixing bowl or one that will fit in a stand mixer. Sprinkle 1 teaspoon of active dry yeast and 1 tablespoon of white sugar over the water. <sep> (A) Mix the mixture well until it forms stiff peaks. [substeps] You can substitute dark brown sugar for the active dry yeast, if you prefer. (B) [substeps] You can substitute sugar for the yeast if you prefer. Flavorings that have active dry yeast will help the bread bind together better. (C) Set the mixture aside for 5 to 10 minutes. You don't need to stir it yet. (D) Mix everything together until the mixture forms a good paste and stiff peaks. [substeps] You can use more active dry yeast.

C