What is a primary feature of multimedia accessibility?

Subtitles and captions are essential features of multimedia accessibility as they provide a means for individuals who are deaf or hard of hearing to access spoken content and important audio cues within video and audio materials. By including subtitles and captions, creators ensure that all users, regardless of their auditory capabilities, can comprehend the information being presented. This not only aligns with accessibility standards but also enhances overall user experience by making content more inclusive.

The other options, while they may enhance the overall quality of multimedia presentations, do not specifically address the fundamental needs of accessibility. For instance, audio quality enhancement may improve sound clarity but doesn’t aid those with hearing impairments. Improvements to visual effects and graphic design clarity may enhance aesthetic appeal but are not centered on ensuring that content is accessible to users with disabilities. Thus, while these factors contribute to a rich multimedia experience, they do not directly address the core aspect of accessibility like subtitles and captions do.