Which two statements are true about scheduling operations in a pluggable database (PDB)? (Choose two.) 

Scheduler jobs for a PDB can be defined only at the container database (CDB) level. 

A job defined in a PDB runs only if that PDB is open. 

Scheduler attribute setting is performed only at the CDB level. 

Scheduler objects created by users can be exported or imported using Data Pump. 

Scheduler jobs for a PDB can be created only by common users.