Which two are true concerning a multitenant container d…

Which two are true concerning a multitenant container database with three pluggable database?

A.
All administration tasks must be done to a specific pluggable database.

B.
The pluggable databases increase patching time.

C.
The pluggable databases reduce administration effort.

D.
The pluggable databases are patched together.

E.
Pluggable databases are only used for database consolidation.