What is the main benefit of using prefab variants in a Unity project?

• A. They let you create variations while preserving a single source of truth.
• B. They compress assets.
• C. They disable physics.
• D. They automatically optimize meshes.

Answer: (B)

Prefab variants let you build multiple versions of a base asset while keeping most of their data shared. The main benefit is preserving a single source of truth: you edit the base prefab, and those changes can propagate to all its variants, so updates, behavior, and structure stay consistent across every version. You can override specific properties in each variant (like color, size, or certain components) without duplicating the whole setup, which saves time and reduces drift between variants.

Asset compression, disabling physics, or automatic mesh optimization aren’t what prefab variants provide. Compression is controlled by import settings and platform needs, physics behavior is controlled by the Rigidbody/Collider setup, and mesh optimization is handled separately through modeling and import steps.