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: [header] How to protect yourself from replica watch websites [title] Use your credit card. [step] Not your debit card, but your credit card. [substeps] The only payment method you should use is credit card. <sep> (A) Using a credit card only licenses you to pay for certain services, such as security clearance. Also, you can get a replica watch at the store. (B) Then you'll pay with cash or check. If cash cannot be reached, that means that your account is not secure. (C) If you want to shop around, try to use a credit card, as they don't grant these types of deals. For example, you can use a credit card to buy super priced watches, but in return they must be an anniversary gift. (D) This is the only payment option that protects you from internet scams. Why? Because your bank has your back.

Output: D


Input: Consider Input: [header] How to put your cat on a limited ingredient diet [title] Talk with your vet. [step] A limited ingredient diet has ingredients to which your cat is not allergic. For cats, this diet typically contains a novel protein, which is a protein your cat has not eaten before. <sep> (A) Examples of potentially novel proteins are venison (deer) and kangaroo meat. When you talk with your vet, tell them the protein source in each food you have fed your cat. (B) Your vet can tell you whether the recommended amounts of this protein are beneficial to your cat. [substeps] If you are unsure, also consider the ingredients mentioned below. (C) The protein source has to be traditional protein sources like steel, chicken, and a wide variety of foods. Watch which amino acids your cat seems to react to more often. (D) Your vet can recommend a dosage based on the type of protein your cat likes to eat. [substeps] If your cat has an allergy to the protein you feed them, bring it to their veterinarian.


Output: A