How can you highlight text in a word processor?

To highlight text in a word processor, the most effective method involves clicking and dragging over the desired text and then selecting the highlight color. This technique allows users to precisely choose which text they want to emphasize and apply the highlight, enhancing the visibility of important information in a document. The capability to select a color further allows for personalization, enabling different colors to convey different meanings or levels of importance.

Double-clicking the text typically selects a word, but does not provide an option to apply highlighting directly. This method is again more limited in scope, as it encompasses only single words rather than allowing for larger sections of text to be highlighted.

Right-clicking might offer options for highlighting, but it isn't the standard method for highlighting text in many word processors, which often have more direct approaches available through the toolbar.

Using the Ctrl + Z shortcut is a function that typically undoes the last action in a word processor, which does not relate to the task of highlighting text. Thus, this option would not facilitate the highlighting process at all. The ability to click and drag, then select a color makes it the most comprehensive and practical answer for highlighting text.