Which option describes the purpose of system VLANs as used in a Cisco Nexus 1000V Switches?
A. is the equivalent of 802.1q tagging in the Cisco Nexus 1000V
B. enables interface connectivity before an interface is programmed via the control plane
C. allows the VSM to send opaque data to all hosts under management
D. supplements pVLAN functionality in a virtualized environment
