Which two statements about zone-based firewalls are true?

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.