What can you do to keep old log files, when free space falls below 45 MB?

In SmartDashboard, you configure 45 MB as the required free hard-disk space to accommodate
logs. What can you do to keep old log files, when free space falls below 45 MB?

A.
Do nothing. Old logs are deleted, until free space is restored.
B. Use the command fwm logexport to export the old log files to another location.

C.
Configure a script to run fw logswitch and SCP the output file to a separate file server.

D.
Do nothing. The Security Management Server automatically copies old logs to a backup server
before purging.