A mobility group is created by a Cisco WLCM and 4402 Series Wireless LAN Controller. A client that isanchored 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 fromthe foreign controller’s perspective？（）
- ATransmit Mobile Anchor Export message
- BReceived Mobile Anchor Export message
- CTransmit Plumbing duplex mobility tunnel message
- DReceived Plumbing duplex mobility tunnel message