Which of the following is a method for ensuring accessibility in multimedia presentations?

Including alternative text for images is a crucial method for ensuring accessibility in multimedia presentations. This practice allows individuals who may be visually impaired, or who use screen readers, to understand the content of images that are not directly perceivable. By providing descriptive text that conveys the same information as the image, alternative text enables these users to engage fully with the presentation. This approach aligns with accessibility standards and enhances the overall inclusivity of the content.

Other options, such as using small text sizes, avoiding sound entirely, and limiting the use of color, do not contribute positively to accessibility in the same way. Small text sizes can actually hinder readability for individuals with visual impairments, while avoiding sound can exclude those who benefit from auditory learning. Limiting the use of color can reduce the richness of the presentation but is not necessarily a direct method for ensuring that all users have equal access to the information being presented.