What are the four principles of WCAG?

The four principles of the Web Content Accessibility Guidelines (WCAG) are Perceivable, Operable, Understandable, and Robust. Each principle serves as a cornerstone for creating accessible web content.

• Perceivable means that users must be able to perceive the information being presented. This can involve providing text alternatives for non-text content, ensuring that content can be presented in different ways (e.g., simpler layouts), and making sure that all users can access and use that content.

• Operable indicates that users must be able to operate the user interface and navigation. This includes ensuring that all functionalities are available from a keyboard, allowing enough time for users to read and use content, and providing options for users to navigate through content.

• Understandable means that the information and operation of the user interface must be understandable. This involves making text readable and comprehensible, ensuring that web pages appear and operate in predictable ways, and helping users avoid and correct mistakes.

• Robust refers to the content that must be robust enough to be interpreted reliably by a wide variety of user agents, including assistive technologies. This principle emphasizes the importance of compatibility with current and future user tools.

The other options present terms or phrases that either do not align with the established WCAG