Which statement best describes progressive disclosure in UI design?

• A. It shows all information upfront.
• B. It hides navigation options to reduce complexity.
• C. It introduces functionality gradually.
• D. It shows only necessary information at first to reduce cognitive load.

Answer: (C)

Progressive disclosure means gradually introducing functionality so users see only essential features at first and more options appear as they need them. This approach keeps the interface simple and reduces cognitive load while still giving access to advanced capabilities as the user progresses. For example, a settings panel might show basic controls initially, with an “Advanced” or expandable section revealing additional options, or a multi-step form that reveals the next step only after completing the current one. While showing everything at once would overwhelm the user, and hiding navigation or only presenting minimal information without a mechanism to reveal more misses the idea of gradually exposing capabilities.