Which of the following correctly identifies three essential data management practices for a bridge collapse investigation?

• A. Durable data storage with redundant backups and automatic disaster recovery testing.
• B. Centralized data repository and metadata control only, ignoring chain of custody.
• C. Secure chain of custody, centralized data repository with proper access controls, and metadata/version control of documents and models.
• D. Frequent on-site backups and using cloud storage without access controls.

Answer: (C)