Which of the following statements accurately describes the upgrade_export command?

A.
Upgrade_export is used when upgrading the Security Gateway, and allows certain files to be included before exporting.

B.
Used when upgrading the Security Gateway, upgrade_export includes modified files directory.

C.
Upgrade_export stores network-configuration data, objects, global properties, and the data base revisions prior to upgrading the security Management Server.

D.
Used primarily when upgrading the Security Management Server. Upgrade_export stores all object database and the conf directions for importing to a newer version of the Security Gateway.