Which three are true about system and object privileges? (Choose three.)
A. WITH GRANT OPTION can be used when granting an object privilege to both users and roles
B. Adding a primary key constraint to an existing table in another schema requires a system privilege
C. Adding a foreign key constraint pointing to a table in another schema requires the REFERENCES object privilege
D. Revoking a system privilege that was granted with WITH ADMIN OPTION has a cascading effect
E. Revoking an object privilege that was granted with the WITH GRANT OPTION clause has a cascading effect.
F. WITH GRANT OPTION cannot be used when granting an object privilege to PUBLIC
BCE
Grant option can be used for roles
CEF
BCE. A is incorrect because WITH GRANT OPTION only for users, not roles