Which three requirements must be met to share Enhanced Location Based Call Admission Control bandwidth usage between clusters?

Which three requirements must be met to share Enhanced Location Based Call Admission Control bandwidth usage between clusters? (Choose three.)
A. The Cisco Unified Communications Manager version must be 8.6 or higher.
B. The location name must be the same on both clusters.
C. SIP ICT must use the Shadow location.
D. The Location Bandwidth Manager Service should be started on only two servers in each cluster.
E. A Location Bandwidth Manager Hub Group must be created for each cluster.
F. Links must be created to the Shadow location.