Refer to the exhibit
These switches form an SPBM region. What is required for load balancing to occur across the links between these switches?
A. IS-IS cost for each backbone link must be the same (with IS-IS ECMP enabled).
B. B-VLANs must be configured to use different ECT algorithms.
C. Tandem multicast mode must be enabled globally
D. B-VLANs must be assigned to different MSTP instances.