A ________ row appears as the last row of a table to display summary statistics, such as a sum

An SDK is

A) A set of tools used by computer techs to repair and troubleshoot PCs B) A set of tools used specifically to repair laser printers and mobile devices C) A set of tools used to develop an app for a specific mobile OS or platform D) A security app used to protect the operating system

What will the following code print?

``` num = 5; cout << num++ << " "; cout << num-- << " "; cout << --num; ```