Switch R1 is configured to use the VLAN Trunking Protocol （VTP）. What does R1 advertise in its VTP domain？（）

• 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.