In the switching network shown in the figure, VLAN 10 is set as Super VLAN on switch SWA, VLAN2 and VLAN3 are sub VLANs of VLAN 10, port Ethernet1/0/3 is a Trunk port, PVID is VLAN1, and all VLANs are allowed to pass; VLAN2~VLAN20 are created on switch SWB. Port Ethernet/0/4 is a Trunk port, PVID is VLAN1, and all VLANs are allowed to pass. After setting the IP addresses of each device as shown in the figure, which of the following statement is correct?

A . The PCC message comes out of SWB’s Ethernet 1/0/4 port and enters SWA’s Ethernet 1/0/3 port. The VLAN tag it carries is VLAN 1.
B . The PCC message comes out of SWB’s Ethernet 1/0/4 port and enters SWA’s Ethernet 1/0/3 port. The VLAN tag it carries is VLAN 2.
C . The PCC message comes out of SWB’s Ethernet 1/0/4 port and enters SWA’s Ethernet 1/0/3 port. The VLAN tag it carries is VLAN 3.
D . The PCC message comes out of SWB’s Ethernet 1/0/4 port and enters SWA’s Ethernet 1/0/3 port. The VLAN tag it carries is VLAN 10.

Answer: B