B. Compliance categorization policy (Option B): Salesforce’s data classification feature allows customers to categorize data based on compliance requirements. This policy helps in marking and managing data according to specific industry or regulatory standards.

D. Data sensitivity policy (Option D): Data classification in Salesforce also includes the ability to define and enforce policies related to data sensitivity. This helps in identifying and managing sensitive information appropriately.

Options A (Data governance policy) and C (Reference data policy) are not specific classifications that are part of the native data classification feature in Salesforce. The primary focus is on compliance categorization and data sensitivity.