What is the only permitted operation for processing multicast traffic on zone-based firewalls?

What is the only permitted operation for processing multicast traffic on zone-based firewalls?
A . Only control plane policing can protect the control plane against multicast traffic.
B . Stateful inspection of multicast traffic is supported only for the self-zone.
C . Stateful inspection for multicast traffic is supported only between the self-zone and the internal zone.
D . Stateful inspection of multicast traffic is supported only for the internal zone.

Answer: A