You decide to develop a new operating system to be used on mobile phones. What characteristics does it need to have? Since it isn’t always possible to have every characteristic that you might want, what trade-offs are reasonable to make?

is this supposed to be a question ?

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.

answer unified communications;