What is the primary function of the "WBLOCK" command?

The "WBLOCK" command in AutoCAD is primarily used to create a new drawing file from selected objects. When you use this command, you can choose specific entities or objects within your current drawing and write them to a new file. This is particularly useful for consolidating parts of a drawing into a separate file for further use or for sharing particular components without having to send the entire drawing. The ability to isolate and export selected parts maintains workflow efficiency, especially when working on large projects with multiple components.

In contrast, the other options provided do not accurately describe the purpose of the "WBLOCK" command. Creating a new layer is handled by other commands such as "LAYER," exporting drawing settings pertains to different commands that manage settings rather than drawing content, and saving the current work area is done through commands like "SAVE" or "SAVEAS," which do not isolate or create new drawing files based on selected objects.