Which two of these would cause two switch fabrics not to merge? (Choose three.)

Which two of these would cause two switch fabrics not to merge? (Choose three.)
A . The switches have different assigned VLANs on the connecting ports
B . The election of the static domain is only determined by the WWNs of the two switches
C . The switch do not have at least one assigned domain IS in common
D . The static domain ID does not override the dynamic ID
E . The switches have different assigned VSANs on the connecting ports

Answer: B,D, E