Which two statements about zone-based firewalls are true? (Choose two.)

Which two statements about zone-based firewalls are true? (Choose two.)
A . More than one interface can be assigned to the same zone.
B . Only one interface can be in a given zone.
C . An interface can only be in one zone.
D . An interface can be a member of multiple zones.
E . Every device interface must be a member of a zone.

Answer: A,C