Which of the following best describes animation in web design?

Animation in web design refers to the creation of dynamic and engaging content that brings elements on the web page to life through movement and transitions. This process can involve various techniques, including CSS animations, JavaScript animations, and the use of animated GIFs or video. By incorporating animation, designers can create a more interactive user experience, draw attention to specific elements, and effectively communicate messages.

Dynamic content enhances user engagement and can guide users in navigation or provide feedback, making it a critical aspect of modern web design. In contrast, the other options describe scenarios that do not embody the essence of animation. The static presentation of images lacks movement and interactivity, while the use of GIFs primarily for still effects does not represent animation's full potential. Applying filters pertains more to image enhancement rather than movement. Thus, the best descriptor for animation in the context of web design is indeed the creation of dynamic and engaging content.