Different levels in a document are visible in ________ view

One way to access the desktop in Windows 8 is to press the:

A) Ctrl+Shift+D. B) Ctrl key+D. C) Windows key+D. D) Alt key+F4.

Which of the following configures a margin for an element with the following values: top margin 30 pixels, left margin 150 pixels, right margin 0 pixels, and bottom margin 0 pixels?

a. margin: 150px 20px 0 300px; b. margin:top-30, left-150, right-0, bottom-0; c. margin:30px 0 0 150px; d. none of the above