Which two statements about Data Recovery Advisor are true? 

Data Recovery Advisor can be used to diagnose and repair data corruptions in non-CDBs. 

Data Recovery Advisor cannot be used to diagnose and repair data corruptions in the root of a CD 

Data Recovery Advisor can be used to diagnose and repair data corruptions in PDBs. 

You can use the ADVISE FAILURE command to display repair options after running LIST FAILURE in an RMAN session.