You configured a new appliance port, but the port has a pinning failure. Which option is a possible cause? 

Answer options:

A. The appliance port admin speed must be adjusted.
B. The appliance is configured for NPV.
C. Appliance VLANs are missing duplicate global VLANs.
D. Appliance VLANs are duplicated in global VLANs.

C