Which two statements are true?

You execute the commands:

Which two statements are true?

A.
The create user command fails if any role with the name Sidney exists in the database.

B.
The user Sidney can connect to the database instance but cannot perform sort operations because no
space quota is specified for the temp tablespace.

C.
The user Sidney is created but cannot connect to the database instance because no profile is default.

D.
The user Sidney can connect to the database instance but requires relevant privileges to create objects in
the users tablespace.

E.
The user Sidney is created and authenticated by the operating system.