Which statement about the policy ID number of a firewall policy is true?

When interacting with FortiGate firewall policies through the CLI, each policy is uniquely identified by its policy ID number. This ID is mandatory when using commands to edit, show, or delete a specific policy, ensuring the correct rule is targeted.

The policy ID is a unique identifier for the policy itself and does not reflect the number of objects (addresses, services, etc.) configured within that policy.

The policy ID is a static, unique identifier assigned upon creation and does not change even if the firewall policies are reordered in the policy list.

While firewall policies are processed in order from top to bottom, the policy ID itself is just an identifier; the actual processing order is determined by the policy's position in the list, not by its numerical ID value.