A. If there exists no unicast equal-cost routes, multicast load balancing fails.
B. If group address-based load splitting is employed, balanced distribution of entries over equal-cost routes cannot be ensured due to hash function limitations.
C. Balanced distribution of entries over equal-cost routes can be ensured as long as multicast load balancing is performed.
D. During multicast load splitting, traffic may not be balanced among equal-cost routes because multicast load balancing is based on multicast entries not