Which three are true about using RMAN in a Data Guard environment?

A: Backups of archived redo logs taken on a physical standby are interchangeable with a primary. B: Backups of control files taken on a physical standby are not interchangeable with a primary. C: A recovery catalog is required when RMAN is used to take backups from a physical standby database if you plan to recover the primary using those backups. D: Backups of data files taken on a physical standby are interchangeable with a primary. E: A recovery catalog is required when RMAN is used to take backups from a logical standby database in a Data Guard configuration if you plan to recover the primary using those backups.