I would have to say D) because they know the real answer.
Answer:
SONET was the only one on the list created near the 1980s (1985)
Good luck!
<em>~Awwsome</em>
The ribbon is a set of toolbars at the top of the window in Office programs designed to help you quickly find the commands that you need to complete a task. Sometimes the ribbon can get hidden and it's hard to find. The quickest way to show the ribbon is to click on any visible tab, like Home<span>, </span>Insert<span> or </span>Design<span>. You might also want to hide the ribbon to maximize screen space.</span>
Go to your general settings and click on data usage and it should show you how much storage is left.