Switch R1 is configured to use the VLAN Trunking Protocol （VTP）. What does R1 advertise in its VTP domain？（）
- AThe VLAN ID of all known VLANs，the management domain name，and the total number of trunk links on the switch.
- BThe VLAN ID of all known VLANs，a 1-bit canonical format （CF1 Indicator），and the switch configuration revision number.
- CThe management domain name，the switch configuration revision number，the known VLANs， and their specific parameters.
- DA 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.
- ENone of the other alternatives apply.