System Administrators can be added to vCloud Director in which two ways? (Choose two.)

System Administrators can be added to vCloud Director in which two ways? (Choose two.)

A.
Create a System Administrator account in vCloud Director.

B.
Import LDAP users or groups by a System Administrator.

C.
Assign the System Administrator role to the vCenter Administrator.

D.
Copy an existing System Administrator account to inherit Administrator rights from an ESXi host.