Multiple choice

The shortcut key for one step backward is

  1. Ctrl + Z

  2. Ctrl + Alt + Z

  3. Ctrl + Alt

  4. Ctrl + Shift + Z

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ctrl + Z is undo, but Ctrl + Alt + Z is the standard shortcut for 'step backward' in many software suites like Adobe Photoshop.