Which aspect does "operable" address in WCAG principles?

In the context of the Web Content Accessibility Guidelines (WCAG), the term "operable" specifically addresses how users can interact with content. This principle focuses on ensuring that all users, including those with disabilities, have the ability to navigate and engage with web content effectively.

An operable interface means that all interactive elements on a website—such as links, buttons, and forms—are accessible through various means of interaction, whether it’s via keyboard, mouse, touch, or assistive technologies. This aspect exemplifies the importance of usability in web accessibility, as it entails that users can easily reach and utilize the functionality provided on a webpage without unnecessary barriers.

While other aspects listed relate to different principles outlined in WCAG, such as perceivability or flexibility of content, it is operability that specifically emphasizes the interaction capability of users with the web content. Therefore, focusing on making content operable supports a broader range of user interactions and ensures a more inclusive experience for everyone.