Regarding the MA5680T DHCP emulation test function, which of the following statements is incorrect?

Regarding the MA5680T DHCP emulation test function, which of the following statements is incorrect?
A . The system can only support one simulation at a time
B . Execute in TSET mode
C . Only Layer 2 DHCP mode emulation is supported. Layer 3 RELAY emulation is not supported
D . The VLAN of the service flow cannot be QinQ, Stacking, subvlan

Answer: B