Discussion
In computer aided design (CAD), solid models can be constructed using
Answer: A
Solid models can be built with boundary representation (B-rep).
B-rep describes a solid by its bounding faces, edges and vertices and the topology linking them, so it defines an enclosed volume. Together with constructive solid geometry it is one of the two main solid modelling schemes.
Bezier curves, B-splines and NURBS are methods for representing curves and surfaces. They can describe the faces of a solid, but on their own they do not define a closed volume, so they are not solid modelling schemes.
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