Which two statements are correct about user1?

User1 is a member of the OSOPER group only. Which two statements are correct about user1? (Choose two.)

A.
User1 can create a database.

B.
User1 owns the Oracle database files.

C.
User1 owns the Oracle installation files.

D.
User1 can connect to the database as SYSOPER.

E.
User1 can connect to that database through operating system (OS) authentication.