Consider a scenario where a network administrator has recently deployed a series of firewall policy updates for a large enterprise network using FortiManager 5.4. Following the deployment, several critical business applications experienced intermittent connectivity issues. The administrator suspects that one of the recently implemented policy changes is the root cause. To restore service, the administrator needs to revert the entire network configuration to the state it was in immediately before the last deployment. Which of the following actions accurately describes the method to achieve this rollback on the managed FortiGate devices?