The network administrator maps VLAN 10 through 20 to MST instance 2.  How will this information be propagated to all appropriate switches？（）

• A、 Information will be carried in the RSTP BPDUs.
• B、 It will be propagated in VTP updates.
• C、 Information stored in the Forwarding Information Base and the switch will reply on query.  
• D、 Multiple Spanning Tree must be manually configured on the appropriate switches.