What are the problems with manually creating static VXLAN tunnels in a campus network? (Multiple Choice)

What are the problems with manually creating static VXLAN tunnels in a campus network? (Multiple Choice)
A . Although the static VXLAN tunnel mode can support distributed gateway application scenarios, the configuration workload is large and the configuration adjustment is complicated.
B . When N devices establish static VXLAN tunnels, at most N (N-1)/2 tunnels need to be manually configured, and the amount of configuration is large.
C . VTEP can only rely on data flooding to learn the remote MAC address
D . Static VLAN tunnels also use related protocols on the control plane, which will cause device resource consumption

Answer: ABC