Which two statements are true about service creation for pluggable databases (PDBs)?

A、 When a PDB is created, a service is automatically started in the instance with the sameName as the PD
B、
B、 The default service that is automatically created by a database at the time of PDB creationCan be dropped, provided a new additional service is created.
C、 Adatabase managed by Oracle Restart can have additional services created or existingServices modified by using the srvctl utility for each PD
B、
D、 Only a common user can create additional services for aPD
B、
E、 When a PDB is created, a service with the same name as the PDB is created in the PD
B、