In PAC 3 Accessibility Testing, what does the logical structure check primarily focus on?

The focus of a logical structure check in PAC 3 Accessibility Testing is on the organization and semantics of the document as it relates to accessibility. This includes examining the proper use of headings, lists, tables, and other structural elements to ensure that they convey the intended relationships and hierarchy of information clearly and effectively.

By ensuring that structure elements and role mapping are correctly implemented, assistive technologies can accurately interpret and navigate the content. For example, proper heading levels allow screen readers to understand how different sections of the document relate to one another, enhancing the overall accessibility for users with disabilities.

The other choices center on aspects that, while important for overall document presentation and usability, do not specifically address the underlying logical structure required for accessibility. Design color contrasts play a critical role in visual accessibility, content relevance affects usability, and font sizes and styles contribute to the visual appeal and readability but do not directly impact the logical structure that is crucial for proper accessibility testing.