A.The VLAN ID of all known VLANs，the management domain name，and the total number of trunk links on the switch.
B.The VLAN ID of all known VLANs，a 1-bit canonical format （CF1 Indicator），and the switch  configuration revision number.
C.The management domain name，the switch configuration revision number，the known VLANs，  and their specific parameters.
D.A 2-byte TPID with a fixed value of 0x8100 for the management domain number，the switch  configuration revision number，the known VLANs，and their specific parameters.
E.None of the other alternatives apply.