Final answer:
Captioning an image with detailed "alt text" fulfills multiple purposes, including enhancing accessibility for visually impaired users, contributing to SEO, and providing context.The correct answer is:4) all of the above
Step-by-step explanation:
Captioning an image with detailed "alt text" is a way to improve accessibility for visually impaired users, increase the image's search engine optimization, and provide additional context for the image.
Alt text serves as a crucial component for individuals with vision impairments by providing a textual description of the image content, which aids in their understanding of the media.
Additionally, alt text plays a role in SEO as it helps search engines understand the image content, which can improve a page's ranking.
Moreover, it offers context and complements the narrative in which the image is used.
These aspects together make alt text essential for enhancing both usability and accessibility in multimodal compositions.
The correct answer is:4) all of the above