In Service OM, which of the following descriptions about creating an external network is wrong?

In Service OM, which of the following descriptions about creating an external network is wrong?
A . The external network used for elastic IP can also be used for VPN service
B . If the network type is LOCAL, the messages of the ECS created using this network will not enter the physical network
C . If you select VLAN as the network type, the packets of the ECS created using this network will not enter the physical network
D . Before creating an external network, it is recommended to configure the VLAN or subnet on the switch for users to create external networks.

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Answer: C