Which attribute in the <a> tag is used to specify the destination of a link?

The attribute in the <a> tag that is used to specify the destination of a link is the href attribute. This attribute stands for "hypertext reference" and is crucial for defining the URL or the location that the link will point to when clicked.

For instance, in an anchor tag that looks like this: <a href="http://www.example.com">Visit Example</a>, the href attribute contains the URL "http://www.example.com", which indicates where the browser should navigate when the user clicks on the link text "Visit Example."

The other attributes mentioned, such as src and target, do not serve this particular purpose. The src attribute is commonly associated with images or other resources, specifying the source file. The target attribute, on the other hand, is used to determine how the linked document will be displayed (e.g., in a new tab or window) but does not indicate the actual destination of the link itself. The attribute link does not exist in the context of the <a> tag. Therefore, the href attribute is fundamentally essential for creating functional hyperlinks in HTML.