According to the FortiGate Administration Guide, “When you add a FortiSwitch device to the Security Fabric, FortiGate automatically creates the following VLANs on theFortiSwitch device: fortilink, quarantine, erspan, voice, video, and onboarding.” Therefore, option D is true because it lists the FortiSwitch VLANs that are automatically created on FortiGate when the first FortiSwitch device is discovered. Option A is false because default and nac_segment are not among the automatically created VLANs. Option B is false because access and rspan are not among the automatically created VLANs. Option C is false because default and nac_segment are not among the automatically created VLANs.