In a Cisco ACI Multi-Site fabric, the Inter-Site BUM Traffic Allow option is enabled in a specific stretched bridge domain. What is used to forward BUM traffic to all endpoints in the same broadcast domain?
A. ingress replication on the spines in the source site
B. egress replication on the source leaf switches
C. egress replication on the destination leaf switches
D. ingress replication on the spines in the destination site
