A mobility group is created by a cisco wlcm and 4402 series wireless lan controller. A client that is anchored on the cisco wlcm roams to an access point on the 4402 controller. you then run a debug command on the 4402 controller. Which message would best describe the establishment of the tunnel from the foreign controller’s perspective？（）

• A、received mobile anchor export message
• B、transmit plumbing duplex mobility tunnel message
• C、received plumbing duplex mobility tunnel message
• D、transmit mobile anchor export message