Which of the following examples uses the correct syntax for the anchor element?

The selected answer illustrates the correct syntax for the anchor element in HTML. An anchor element is used to create hyperlinks, which allow users to click on text or images to navigate to different web pages or locations on the same page.

The correct syntax for the anchor element involves the use of the <a> tag, followed by an attribute that specifies the URL (the href) where the link will lead. In this instance, <a href="http://www.habitat.org">Habitat</a> correctly defines a hyperlink where "Habitat" will be displayed as clickable text that directs users to the specified URL when clicked.

In contrast, the other examples illustrate incorrect usages. One presents a <link> tag, which is not intended for creating hyperlinks within the content; it is generally used to link external resources like stylesheets. Another example incorrectly uses <anchor>, which is not a valid HTML tag, as the proper tag for creating links is <a>. Lastly, the fourth example fails to use the anchor tag altogether and erroneously applies the href attribute in a way that does not conform to HTML standards. Therefore, only the first example properly demonstrates the correct syntax for an anchor element.