To display the navigation pane, click the ____________________ tab and click Navigation Pane from the Show group.

Which of the following is a proprietary OS for desktop and laptop computers?

A) Linux B) Windows C) iOS D) Android

A(n) ____________________ specifies each of the use case sequences of actions by describing what the user will do and how the program will respond.

Fill in the blank(s) with the appropriate word(s).