Write the next sentence in the following story.

How to chat with your facebook friends using yahoo messenger for android
Download yahoo messenger.
Simply search for the app in google play, tap " install " button and wait for it to finish downloading and installing.
Sign in your yahoo id.

Options are:
[I] You can only access your account from your yahoo messenger computer. If you've forgotten to sign in, tap " log in " and follow the on-screen instructions to sign in.
[II] Enter your yahoo id and password then tap " sign in " to proceed. If you don't have an id on yahoo yet, simply tap the " sign up " button and fill all the required information to get one.
[III] If you already have a yahoo messenger account, use your online wallet to sign up for your account. If you don't have one, tap on your account name and enter your yahoo id.
[IV] Enter your yahoo id details into the appropriate fields, and tap " sign in " to begin tapping. Select the " chat info " tab from the drop-down menu.. The answer should be
[II]