Which statement is true about the srvctl start service …

PROD1, PROD2 and PROD3 are three instances that have multitenant container database PROD open.
PROD contains multiple PDBs.Examine these successful commands:
$ srvctl add service –db PROD –pdb PRDPDB1 –service SRVPDB1
$ srvctl start service –db PROD –service SRVPDB1
Which statement is true about the srvctl start service command?

A.
It opens the PRDPDB1 PDB if not already opened.

B.
It can open the PRDPDB1 PDB only if it is policy managed.

C.
It can open the PRDPDB1 PDB automatically.

D.
It can open the PRDPDB1 PDB only if it is manually managed.