Which of the following statements is true regarding the data dictionary?

A data dictionary describes the content, meaning, structure, format, relationships, and attributes of data stored in a database. It defines items such as field names, data types, valid values, table relationships, and business definitions. This helps ensure consistency, data quality, system understanding, and proper use of information. System tables and program files are technical database components, but they are not the core description of a data dictionary. Users, permissions, and groups are access-control objects, not the primary purpose of a data dictionary. Backup and encryption keys are security and recovery elements. Internal auditors may use a data dictionary to understand data sources, validate analytics fields, and assess data governance. Therefore, Option B is correct.