Which two statements are true about the successful execution of the command?

Your multitenant container database (CDB) cdb1, which has no startup triggers and
contains multiple pluggable databases (PDBs), is started up by using the command:
SQL>STARTUP Which two statements are true about the successful execution of the
command?

A.
Only the root database is opened in read-write mode.

B.
All redo log files are opened.

C.
The root, the seed, and all the PDBs are opened in read-write mode.

D.
All the PDBs are opened in read-write mode.

E.
All the PDBs are in closed state.