Which three options are valid SPAN sources? (Choose three.)
A. VLANs, because when a VLAN is specified as a SPAN source, all supported interfaces in the VLAN are SPAN sources
B. fabric port channels connected to the Cisco Nexus 2000 Series Fabric Extender
C. Layer 2 subinterfaces
D. satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender
E. Layer 3 subinterfaces
F. Remote Span Ethernet Ports