Which option allows users to exit Thumbnail view?

The correct option for exiting Thumbnail view is achieved by clicking on the Show/Hide Thumbnail icon again. This action toggles the Thumbnail view on and off, allowing users to transition smoothly between viewing the thumbnails and returning to the standard display. The design of this feature is intuitive, enabling users to quickly manage their workspace without requiring complex navigation.

Other options might suggest alternative ways of managing the viewer interface, such as selecting an exit option or pressing the Escape key, but these do not specifically target the Thumbnail view feature and might not be universally applicable across different software implementations or versions. The simplicity of toggling the Thumbnail view through the icon click streamlines user experience, making it easy to switch back and forth as needed. Minimizing the viewer window does not address Thumbnail view specifically; it simply reduces the visibility of the entire program rather than managing its specific features.