Which of the following allows for the Gateway configuration to be completely backed up into a manageable size in the least amount of time?

You intend to upgrade a Check Point Gateway from R71 to R77. Prior to upgrading, you want to
back up the Gateway should there be any problems with the upgrade. Which of the following
allows for the Gateway configuration to be completely backed up into a manageable size in the
least amount of time?

A.
database revision
B. snapshot

C.
upgrade_export