Which of the following represents Boolean operations in modeling?

The correct choice illustrates the fundamental operations used in Boolean modeling, which involve combining or altering solid geometry through three primary actions: union, subtraction, and intersection.

In the context of computer-aided design (CAD) and 3D modeling, these operations are essential for creating complex shapes from simpler geometric forms.

1. Union (Unite) combines two or more solid bodies into one, effectively merging their volumes.

2. Subtraction (Subtract) removes the volume of one solid from another, allowing for the creation of cavities or cut-outs in the geometry.

3. Intersection (Intersect) produces a new solid that represents only the volume shared by both bodies, which is useful for modeling overlapping features.

This choice aligns perfectly with these fundamental Boolean operations, forming a clear basis for manipulating solids in NX and other modeling software. The terminology used directly reflects the operations performed on geometric bodies, making it intuitive and relevant for users engaging in design and modeling tasks.