FortiGate is operating in NAT mode and is configured with two virtual LAN (VLAN) subinterfaces added to the same physical interface. In this scenario, which sta...

FortiGate is operating in NAT mode and is configured with two virtual LAN (VLAN) subinterfaces added to the same physical interface.
In this scenario, which statement about the VLAN IDs is true?

A. The two VLAN subinterfaces can have the same VLAN ID only if they have IP addresses in the same subnet. B. The two VLAN subinterfaces can have the same VLAN ID only if they have IP addresses in different subnets. C. The two VLAN subinterfaces can have the same VLAN ID only if they belong to different VDOMs. D. The two VLAN subinterfaces must have different VLAN IDs.