The valid asset-structure principles are Legibility, Navigability, and Modularity. NVIDIA's Learn OpenUSD asset-structure guide identifies four principles of scalable asset structure: Legibility, Modularity, Performance, and Navigability. It defines legibility as making an asset structure easy to understand and interpret, modularity as enabling flexibility and reuse, and navigability as making it easy for users to find and access the features and properties they need. (docs.nvidia.com)

Option A is correct because clear names, organization, and intent make assets easier to troubleshoot, exchange, and maintain. Option C is correct because downstream users and tools must be able to locate meaningful prims, properties, variants, payloads, and interfaces efficiently. Option D is correct because reusable modular components support parallel workstreams and scalable aggregation. Option B is incorrect because redundancy is generally discouraged; NVIDIA's modularity guidance emphasizes reuse and avoiding duplicated data. Option E is incorrect because ''compressability'' is not one of the stated principles. This aligns with Content Aggregation Asset Structure Principles Legibility, Modularity, Performance, Navigability.