Which feature is primarily used for enhancing a 2D drawing into a 3D representation?

The feature that is primarily used to enhance a 2D drawing into a 3D representation is the extrude function. This tool takes a 2D shape and extends it along a third dimension, effectively giving it depth and transforming it into a 3D object.

For instance, if you have a 2D square profile, applying the extrude feature allows you to elongate it into a cuboid, creating volume and making it suitable for 3D modeling. This capability is essential in design software where 2D sketches need to be converted into 3D models for further visualization, animation, or manufacturing.

Other options serve different purposes. For example, the trim function is used to cut away part of the drawing, the mirror function creates a symmetrical copy of an object, and the revolve function can generate a 3D shape by rotating a 2D profile around a specified axis, but none of these options primarily enhance 2D drawings into 3D in the same straightforward manner that extrude does.