Which statement best defines 3D Printing?

Which statement best defines 3D Printing?

• A. The science of quantum mechanical properties to perform cryptographic functions
• B. The construction of a 3D object from a CAD model or a digital 3D model.
• C. A computer-generated simulation of a 3D environment
• D. The use of matter on an atomic scale for industrial purposes

Answer: (B)

3D printing is the process of turning a digital 3D model into a physical object by adding material layer by layer. This matches the idea of constructing a 3D object from a CAD model or digital 3D model, turning the design into something tangible. The other descriptions point to different concepts: quantum properties used for cryptography, computer-generated simulations of 3D environments, and atomic-scale manufacturing, none of which describe the typical additive fabrication of real objects from digital designs.