Which of the following best defines the primary function of a specialize composition arc in...

A specialize composition arc broadcasts fallback opinions from a source prim to one or more specializing destination prims. NVIDIA’s Learn OpenUSD glossary defines specializes as a composition arc that broadcasts fallback values from a source prim and applies only when the specializing prim does not already have its own authored opinion. It further explains that specializes is similar to inherits in its broadcast behavior, but differs because specializes contributes fallback values rather than stronger reusable opinions. ( docs.nvidia.com )

Option B is correct because it captures the essential behavior: source specs are supplied as fallback data. Option A is incorrect because specializes is the weakest composition arc in LIVERPS ordering; it does not always win. NVIDIA’s strength-ordering guide states that specializes acts as a new fallback value, winning only when stronger composition choices provide no value. ( docs.nvidia.com ) Option C describes the conceptual naming idea of specialization but not the primary functional mechanism. Option D is incorrect because “stronger specs” describes a different strength behavior. This aligns with Composition → Inherits and Specializes, Fallback Opinions, LIVERPS Strength Ordering .