How can you invoke the "Undo" command in AutoCAD?

The "Undo" command in AutoCAD is commonly invoked by pressing Ctrl + Z. This keyboard shortcut is a widely recognized standard for the undo function across many software applications, making it a quick and intuitive choice for users familiar with computer operations. When this combination is pressed, AutoCAD reverts the last action taken, which is essential for correcting mistakes or reverting to a previous state during the design process.

Other methods to access the Undo command include clicking the Undo button in the toolbar or right-clicking to access the context menu. However, the keyboard shortcut is often the quickest method, especially for users who are working in a fast-paced environment and need immediate access to this functionality. The option involving Ctrl + Y typically represents the "Redo" command, which is used to restore an action that has been undone, further differentiating it from the correct answer.