The network is displayed in the diagram below： You use the following information for switch SWA： Port Mode Encapsulation Status Native VLAN fa0/1 desirable n-802.1q trunking 5 Port VLANs is allowed on trunk fa0/ 1 1-100， 102-1005 Port VLANs is owned and active in management domain fa0/1 1-6. 8-100， 102-115， 197-999， 1002-1005 Port VLANs in spanning tree forwarding state and not pruned fa0/1 1-6， 8-100， 102-105， 108-999， 1002-1005 SW users in VLAN 107 complain that they are unable to gain access to the resources through theSW1 router. What is the cause of this problem？（）
- AVLAN 107 is not configured on the trunk
- BVLAN 107 does not exist on switch SWA
- CVTP is pruning VLAN 107
- DSpanning tree is not enabled on VLAN 107
- ENone of the other alternatives apply