正解:C
This is because the exhibit shows the configuration of a remote SPAN (RSPAN) VLAN, which is a special VLAN that is used to transport mirrored traffic from one switch to another switch over a trunk link. The RSPAN VLAN is configured with the remote-span option, which indicates that the VLAN is dedicated for RSPAN use only. The access interfaces where the RSPAN VLAN is assigned are placed into an inactive state, which means that they cannot forward any traffic other than the mirrored traffic. The source of this answer is the Cisco ENCOR v1.1 course, module 6, lesson 6.2: Implementing SPAN, RSPAN, and ERSPAN.