Identify two ways to access a pluggable database (PDB) that is open in read-only mode.

You are administering a multitenant container database (CDB). Identify two ways to access
a pluggable database (PDB) that is open in read-only mode.

A.
as a common user with the set container privilege

B.
by executing the alter session set container command as a local user

C.
by using easy connect

D.
by using the connect statement as a local user having only the set container privilege

E.
by using external authentication