On a(n) tablet, the case is positioned below a keyboard, attached by a hinge that enables the user to fold the display down over the keyboard.

The answer is "Convertible".

Explanation:

It is a portable computer, which can be converted to a smartphone often referred to as a"2-in-1," the monitor flips around instead of transforms the device into a triangular board.

d?

explanation:

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.