________ is a system tool that clears the hard drive of all unwanted files such as temporary Internet files or files in the Recycle Bin

When a shape in a SmartArt graphic is selected, the border of the shape is a:

A) series of dots (. . . . . . ). B) solid line. C) series of dashes (- - - - - -). D) series of slashes (/ / / / / /).

Public keys are known only to specific users who keep the key secret

Indicate whether the statement is true or false