Which of the following software does not belong to a CAD?

Correct option is C

Computer-Aided Design (CAD) software is used for engineering, architecture, and product design. Advance Concrete, Advance Steel, and BricsCAD are all CAD-based software programs. NTSYS (Numerical Taxonomy and Multivariate Analysis System), on the other hand, is a statistical tool used for analyzing biological and genetic data, not for computer-aided design.