Final answer:
The target="_blank" attribute in a link tag opens the linked document in a new tab or window.
Step-by-step explanation:
The target attribute in a link tag is used to specify where the linked document should be opened when the link is clicked. When target="_blank" is included, it opens the link in a new tab or window, depending on the user's browser settings.
This is useful when you want to keep the current page open and allow the user to easily return to it after viewing the linked page.