What is one primary purpose of DHTML in web development?

DHTML, or Dynamic HTML, plays a significant role in modern web development primarily by enabling the creation of interactive and animated websites. The essence of DHTML is its ability to combine HTML, CSS, and JavaScript, which together allow for dynamic content changes and enhanced user experiences without requiring a complete page reload. This interactivity can include animations, real-time updates, and enhanced user interface elements that respond to user actions, making websites more engaging and responsive.

This dynamic capability directly addresses the need for modern web applications to provide a rich user experience. By employing DHTML techniques, developers can design sites that are not just static displays of information but instead become interactive environments where users can manipulate content and interact with it in real time. For example, DHTML can be used to create dropdown menus, image sliders, and other interactive components that make a website more functional and appealing.

In contrast, the other options focus on concepts that don't align with the primary function of DHTML. Simplifying static web pages does not involve the dynamic and interactive aspects of DHTML. Enhancing data security pertains to safeguarding information rather than creating interactive interfaces. Streamlining file management is related to organizing and handling files effectively, which is unrelated to the user interface enhancements that DHTML provides