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: This video allows viewers to hear the testimony of a customer who has used the pro roofing service. First the man tells how he heard about the service and how great it is. he <sep> (A) also says that he chose pro roofing because the neighbors chose it and persuaded him by telling how great the service is. (B) gets the materials to do the job and is joined by a group of small children who are drinking lemonade at the lemonade stand and talking. (C) starts by explaining how he is going to first tell the detail of creating a casing using an iron, then he starts on eggs and bacon. (D) talks about some graphic details.
Example Output: A

Example Input: [header] How to care for a cut [title] Wash your hands before treating the cut. [step] You do not want to touch a cut with dirty hands. Before attempting to clean your cut, wash your hands with soap and water. <sep> (A) This will make the cut be less surface-sensitive. [substeps] If you are unable to wash your hands, bring some hand sanitizer with you and wash them thoroughly. (B) Rubbing your hands together can cause irritation, and you may get a serious infection. [title] Scrape the cut with a dentist or surgeon's sharp edge. (C) [substeps] Lather your hands in soap and wash them for about 20 seconds. Make sure to wash under your fingernails and on the backs of your hands. (D) For mild cuts, you may wash your hands with a mild cleanser or special hand sanitizer to hold the bleeding wound and stop it from spreading. Dry the cut quickly with a clean towel and you're finished! [title] Wear gloves.
Example Output: C

Example Input: [header] How to use yahoo messenger for android [title] Download and install yahoo messenger from google play. [step] Search for the app, download it and after installation, tap on the app icon to open it. [title] Sign in to your yahoo account. <sep> (A) [step] Enter your yahoo id and password and then tap on the " sign in " button. You can also choose if you want to sign in invisible to your contacts and for the application to remember your id and password after your close it. (B) [step] You may be asked to verify your yahoo id, which you will log in using your yahoo credentials. Tap on " sign in " if you are already logged in, if the app asks for an id, tap " authorize. (C) [step] Enter your apple id and password and tap on the login button found at the bottom right corner of the screen. [substeps] If prompted, enter your email address and password in the designated fields then tap on the " create apple account " button to create an account. (D) [step] You may need to enter your account id or your password to access. [title] Select the yahoo messenger icon from the menu.
Example Output:
A