Which option is NOT a method of creating features in SolidWorks?

In SolidWorks, creating features typically involves operations that transform 2D sketches into 3D geometry. The methods that are commonly used for creating features include extruding, revolving, and lofting.

Extrude allows you to take a 2D sketch and extend it along a straight line to create a 3D shape. When using the revolve feature, a sketch is rotated around an axis, creating a symmetrical 3D shape, commonly used for parts like cylinders or spherical shapes. Lofting combines multiple sketches at different planes to create a smooth transition between them, enabling the creation of complex shapes.

Contrastingly, "duplicate" is not recognized as a standard feature-creation method in SolidWorks. While it is possible to make copies of features or bodies in the software, this action does not lead to the creation of a new feature in the same way that the other methods do. Therefore, selecting "duplicate" differentiates it from the recognized methods of feature creation in SolidWorks.