Answer:
The "a" tag or <a></a> and its "href" attribute <a href="#"></a>
Explanation:
In html there is only one way to create a link to an external source or a bookmark. The tag is created using the element <a>.
The attribute "href" is then added to describe the link of where it is to point to.
Example:
<a href="google.com">Go to Google</a>
While the text in between the tag describes what the link is about.
