In the deployment of Huawei Cloud Stack in Layer 2 networking mode, which of the following descriptions about the management firewall-related routing configuration is wrong?

In the deployment of Huawei Cloud Stack in Layer 2 networking mode, which of the following descriptions about the management firewall-related routing configuration is wrong?
A . Configure a route with the destination address as the DMZ_Service plane to access tenant DNS_NTP, Console of each cloud service, and other virtual machines
B . Configure a route with the destination address as the External_Relay_Network plane, which is used for tenant virtual machines to access traffic in the public service area of the internal network.
C . Configure a route with the destination address as the External_OM plane to access the Public VRF in the management area
D . Configure the default route pointing to the core InternetVRF to manage the traffic from the virtual machines in the management zone to the external network.

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Answer: A