What is a Prefab and why is it useful for artists?

• A. A Prefab stores a unique, single object only in one scene.
• B. A Prefab is a reusable, stored GameObject and components; it enables consistent instances, easy updates, and batch changes across scenes.
• C. A Prefab is a runtime script for scene generation.
• D. A Prefab is a material template for surfaces.

Answer: (B)

Prefabs are reusable, stored GameObjects plus their components and child objects saved as an asset in Unity. You can place multiple instances of this prefab across scenes, and changes to the prefab asset can be applied to all instances, keeping things consistent while still allowing per-instance overrides. This capability is especially useful for artists because it speeds up scene assembly, enforces uniform visuals and behavior, and makes sweeping updates—like updating materials, collider settings, or the structure of a modular prop—easy from one place. Prefabs can also have variants, enabling variations without rebuilding from scratch. The other descriptions don’t fit: a prefab isn’t just a single object in one scene, it isn’t a runtime script, and it isn’t a material template for surfaces.