You run a script that completes successfully using SQL*Plus that performs these actions: 1. Creates a multitenant container database (CDB) 2. Plugs in three pluggable databases (PDBs) 3. Shuts down the CDB instance 4. Starts up the CDB instance using STARTUP OPEN READ WRITE Which two statements are true about the outcome after running the script?（）

• A、The seed will be in mount state.
• B、The seed will be opened read-only.
• C、The seed will be opened read/write.
• D、The other PDBs will be in mount state.
• E、The other PDBs will be opened read-only.
• F、The PDBs will be opened read/write.