What attribute do you add to an <a> tag to open a link in a new tab?

To open a link in a new tab using an <a> tag, the correct attribute to use is target="_blank". This attribute specifies that the linked document should be opened in a new browsing context, usually a new tab or window. By setting target to _blank, you instruct the browser to create a new context for this link, which promotes seamless navigation and preserves the user's current page.

Other options listed do not fulfill this requirement. For instance, while href typically contains the URL of the link, using it with "_blank" does not achieve the desired effect because it's not formatted correctly as an attribute to open a new tab. "target='_new'" is not a standard value recognized by all browsers, and "link='true'" is not a valid attribute associated with the <a> tag. Therefore, using target="_blank" is the appropriate way to ensure that the link opens as intended in a new tab.