Which two statements is true relating to authentication in Oracle Application Express?

Which two statements is true relating to authentication in Oracle Application Express?

A.
It is a process of establishing user identity before the user can access an application.

B.
An authentication scheme can be specified for an entire application, page, or specific
components
Such as item, button and regions on a page.

C.
An authentication scheme prevents a user from accessing session state belonging to
other users.

D.
An authentication scheme helps a user to reestablish their session when they log back
into an application allowing them to bookmark the application.

E.
An authentication scheme can only be applied to one application.