What is the last action to complete before closing the Insert Hyperlink dialog?

The last action to complete before closing the Insert Hyperlink dialog involves confirming the selection of the hyperlink. When you are working within the Insert Hyperlink dialog, you are typically making decisions about what link to create, whether it is a link to a particular file, webpage, or another document.

Confirming the selection ensures that the hyperlink is properly set up with the intended target. This final step is crucial because it solidifies the link you have chosen. After this step, you would then close the dialog box, which allows the changes to take effect.

Closing the dialog without confirming the selection would not register the hyperlink, thus making it an incomplete action. The other provided options, like selecting an audio file or clicking Cancel, do not serve as the final necessary step for creating a hyperlink. So, confirming the selection creates a completed action before you can properly close the dialog.