Which configuration feature should be used to block rogue router advertisements instead of using the IPv6 Router Advertisement Guard feature? 

Answer options:

A. VACL blocking broadcast frames from nonauthorized hosts
B. PVLANs with promiscuous ports associated to route advertisements and isolated ports for nodes
C. PVLANs with community ports associated to route advertisements and isolated ports for nodes
D. IPv4 ACL blocking route advertisements from nonauthorized hosts

B