Which statement is true for interfaces residing outside of redundancy groups?

Which statement is true for interfaces residing outside of redundancy groups?

A.
The interfaces cannot be mapped to security zones.

B.
Only interfaces that have redundancy can be active in the chassis cluster.

C.
All interfaces will be redundant if they reside on a system that is part of a chassis cluster.

D.
Interfaces that are not in a redundancy group can still forward traffic, but no redundancy is
available for them.