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 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.
Example Output: B

Example Input: [header] How to unlock tracfone mobile phones [title] Call tracfone. [step] Contact customer service at 1-800-867-7183 between 8:00am and 11:45pm, eastern time (et), 7 days a week. [substeps] If you did not buy your phone through tracfone, it is likely unlocked already, and no code is needed. <sep> (A) When you call, ask how long it should be on your phone or get a confirmation email for garfield. [title] Run an internet search for " tracfone mobile phones. (B) Look for a white box containing the code " 192.168.0.1. " if you do not see the code on the box, then replace it with the united states exit code (). (C) [title] Request an unlock code for your phone. [step] The representative will verify that your phone and account meet all the necessary conditions to be unlocked. (D) If you receive a voicemail notifying you that a call was unsuccessful, call customer service at 1-800-627-4590. [title] Place a text message (optional) on each call.
Example Output: C

Example Input: [header] How to promote your business through newsletters [title] Create a simple newsletter template in microsoft word, but if you have microsoft publisher, you can create a fancier template. [step] You have plenty of newsletter template options within microsoft publisher, but if you don't like any of those, check out the online template collection at microsoft office online. [title] Click on the template you want to use. <sep> (A) [step] It should be sitting on a pushup bar directly in front of you in microsoft office. Once you first see it, click on the button with the name " create template. (B) [step] Click on create site to create a sponsored newsletter. Then click on " buy it! " but keep in mind, you will wish to entice a balance between sales and expansion in your newsletter. (C) [step] In the customize box, choose the color scheme you want. Using the same colors that are in your logo or other branding materials is a nice touch for a sense of consistency. (D) [step] If you keep seeing a number of templates that interest you or that are up for adoption right now, click directly on the template you want to use. There's no need to go right click on the description.
Example Output:
C