In a LAN Edge deployment:

FortiSwitch is managedthrough FortiGate via FortiLink.

FortiAIOps integrates withFortiGateas the single managed device; from there it gains visibility intoall Fabric and LAN-edge devices(FortiSwitch, FortiAP) that are registered to that FortiGate.

Once the FortiGate is successfully added to FortiAIOps (as shown in the exhibit, statusOnline / Successfully Discovered), all FortiSwitches managed by that FortiGate are:

Discovered automatically through the FortiGate–FortiAIOps connection

Shown under the appropriate inventory / switch views withno separate onboarding stepfor each switch.

This is why no extra IP, serial number, or credential entry is required for FortiSwitch.

So:

AandBsuggest manual per-switch onboarding, which is not how FortiAIOps works with LAN Edge.

Dsimilarly assumes direct FortiSwitch management, but FortiAIOps talks toFortiGate, not the switch.

Therefore the correct behavior is that theFortiSwitch is added automatically (C)once its managing FortiGate is connected to FortiAIOps.