Which two statements are true about roles in the Solaris 10 OS? (Choose two.)

A.
Roles can only be assumed by authorized users.

B.
su is the only way that a user can assume a role.

C.
Roles require the use of passwords for authentication.

D.
rolemod can be used to allow roles to access other roles.

E.
Roles do NOT have their own UID, GID, or home directory.