Detailed Instructions: 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".
Q: [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.
A:
A