Which two use cases describe the usage of Metadata API?

Universal Containers is considering developing a client application using the Metadata API for managing deployments to multiple Salesforce orgs.

Which two use cases describe the usage of Metadata API? Choose 2 ans
A . Perform CRUD operations o manage records in the organization.
B. Migrate configuration changes between two organizations.
C. Migrate data changes between two organizations using a csv file.
D. Export current customization in the organization as an xml file.

Answer: B,D