Which of the following statements about central NAT are true? (Choose three.)

To avoid conflicts and ensure proper NAT rule processing, any existing IP pool configurations or source NAT settings within standard firewall policies must be removed before central NAT is enabled.

Central NAT is a global system setting that must be enabled or disabled through the FortiGate command-line interface (CLI) using specific system commands, as it fundamentally changes NAT behavior.

In central NAT mode, source network address translation (SNAT) is no longer performed directly within firewall policies; instead, dedicated central SNAT policies must be explicitly configured and matched for source IP translation.

While Destination NAT typically uses VIP objects in firewall policies, this is a general requirement for DNAT and not a specific condition imposed by or unique to enabling central NAT itself; central NAT primarily affects SNAT policy creation.