In designing a link based implementation of the stack, what standard exception did the author decide to ignore?

Which is not an objective of designing interfaces?

A) matching the user interface to the task B) making the user interface efficient C) generating usable queries D) appropriate feedback to the interface from users E) improving productivity

To help identify and resolve app compatibility issues, the Windows 10 ____________________ includes the Application Compatibility Toolkit (ACT).

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