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". 

Input: Consider Input: [header] How to tell if a cat has a sore throat [title] Notice a change in the cat's meow. [step] Your cat's meow can help you determine if they have a sore throat. Listen to them when they meow. <sep> (A) You will notice different tones of their meow in different environments. [substeps] A cat with sore throat may meow intensely or complain loudly. (B) Their meow might sound quieter, raspier, or thinner than usual. If there is a change in the way the meow sounds or a noticeable difference in the way the cat sounds, it might point to a sore throat. (C) Cats meow every time they've got a sore throat, at least once or twice a day. You might hear this meow a lot. (D) If they do meow, then your cat has a sore throat. [substeps] Cats meow because they are in pain.

Output: B


Input: Consider Input: We see a lady and a girl on a raft on a snowy hill. The lady and a man push people down the hill. the people <sep> (A) slide in rafts down the hill. (B) are riding canoes and going on fishing trips. (C) ride down hill on their skateboards and the camera watches them. (D) are then seen skiing down the mountain.

Output: A


Input: Consider Input: [header] How to make dog shampoo [title] Wash your dog with dish soap, vinegar, and glycerin. [step] A simple, all purpose dog shampoo can be made using one cup of dish soap, one cup of apple cider vinegar, and 2 ounces of glycerin. Glycerin is a form of sugar alcohol you can purchase online or at a drug store. <sep> (A) It will really help with greasy dog hair. [substeps] When using this shampoo, make sure to combine ¼ cup vinegar with 2 ounces of glycerin. (B) [substeps] Mix one teaspoon of all purpose dish soap with one quart of warm water. Stir this mixture of tea tree oil and apple cider vinegar into a bowl of warm water. (C) [substeps] Do not use human facial cleansers as the ingredients in your dog shampoo may repel harmful bacteria. [title] Use pure dog shampoo and warm water. (D) You will also want jars to mix your shampoo, and an empty shampoo bottle to put it in when you're finished. [substeps] Pour all your ingredients into a jar, making sure to pour the dish soap first.


Output: D