Which of the following shapes are primitive objects in Unity?

• A. Sphere, Cube, Quad
• B. Trapezoid, Vertex Mesh
• C. Sphere, Trapezoid, Cube
• D. Quad, Trapezoid, Sphere

Answer: (A)

Primitive objects in Unity are the basic built-in meshes you can add directly to a scene. Sphere, Cube, and Quad are part of that set, provided by Unity as ready-to-use shapes with simple geometry and a default collider. These are the simple, predefined building blocks you don’t have to model yourself. A trapezoid isn’t included as a built-in primitive in Unity, so you’d need to model one or generate it procedurally. A Vertex Mesh isn’t a predefined primitive either; that term refers to a mesh you construct from vertices, which is a custom asset rather than a ready-made primitive. So Sphere, Cube, and Quad are the primitive shapes Unity ships by default.