Which two statements are true regarding Tenant Bridge Domain ARP forwarding modes? (Choose two.)

Which two statements are true regarding Tenant Bridge Domain ARP forwarding modes? (Choose two.)
A . ARP flooding occurs only within the encapsulation VLANs.
B . ACI Fabric can team up to a million end points if ARP flooding is not configured.
C . ARP handing is enabled by default which means unicast routing is used to forward the ARP packet.
D . ARP handling is disabled by default which means unicast routing is used to forward the ARP packet
E . ARP flooding must be configured if internal hosts are using an external IP gateway

Answer: A,E