Which feature can be checked on a form to remove all tabs?

The correct choice, "Unlayered Sections," allows users to streamline forms by removing the tab structure, effectively presenting all fields without the need for tab navigation. This feature is particularly useful for enhancing user experience on forms where a straightforward, linear layout is preferred. By checking this feature, all fields and sections on the form become visible at once, which can simplify data entry processes and improve clarity for users.

The other options focus on different aspects of form design. "Hidden Sections" pertains to the visibility of specific sections but does not affect the overall tab structure. "Tab Management" involves adjusting how tabs are organized and displayed rather than removing them entirely. "Section Layout" deals with how sections are arranged within the form but doesn't eliminate tabs, making it distinct from the function of unlayered sections.