When configuring a firewall in a critical environment where a local backup configuration is quickly needed, what should be completed on a periodic basis?

When configuring a firewall in a critical environment where a local backup configuration is quickly needed, what should be completed on a periodic basis?

A.
Execute execconfig rollback

B.
Execute saveconfig to last-known-good

C.
Execute save regularly or create a script that does this

D.
Execute save software from flash tocpmcia