Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to the HR_PDB. You execute the following command: SQL > CREATE UNDO TABLESPACE undotb01 DATAFILE ‘u01/oracle/rddb1/undotbs01.dbf’ SIZE 60M AUTOEXTEND ON; What is the result?（）

• A、It executes successfully and creates an UNDO tablespace in hr_pdb.
• B、It falls and reports an error because there can be only one undo tablespace in a cdb.
• C、It fails and reports an error because the CONTAINER=ALL clause is not specified in the command.
• D、It fails and reports an error because the CONTAINER=CURRENT clause is not specified in the command.
• E、It executes successfully but neither tablespace nor the data file is created.