Which of the following best differentiates HTML from DHTML?

The distinction between HTML and DHTML primarily lies in functionality and content behavior. HTML, or Hypertext Markup Language, is essentially a static language used to create the structure of web pages. Once a web page is loaded, the content remains fixed unless explicitly refreshed or changed by a user action that triggers a different load.

On the other hand, DHTML, or Dynamic HTML, builds upon HTML by introducing dynamic capabilities to web pages. It enables the content to change and respond to user interactions without requiring a page reload. This is possible through the use of JavaScript, CSS, and the Document Object Model (DOM), allowing for more engaging and interactive web experiences. For example, elements such as animations, moving content, and interactive menus can be implemented using DHTML, responding to events like mouse movements, clicks, or other triggers.

This fundamental capability of DHTML to create dynamic changes in the user interface directly differentiates it from HTML's static nature, making the first answer the most accurate.