Which action should be taken to enable the firewalls to send their pre-existing logs to Panorama?

An administrator is using Panorama to manage multiple firewalls. After upgrading all devices to the latest PAN-OS software, the administrator enables log forwarding from the firewalls to Panorama. However, pre-existing logs from the firewalls are not appearing in Panorama.

Which action should be taken to enable the firewalls to send their pre-existing logs to Panorama?
A . Export the log database.
B . Use the import option to pull logs.
C . Use the scp logdb export command.
D . Use the ACC to consolidate the logs.

Answer: A

Explanation:

https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-cli-quick-start/use-the-cli/use-secure-copy-to-import-and-export-files/export-and-import-a-complete-log-database-logdb