單項選擇題

Given the following configuration： 
port-profile type ethernet DATA-UPLINK  
vmware port-group 
switchport trunk allowed vlan 1-3967，4048-4093 
channel-group auto mode on 
no shutdown 
state enabled 
port-profile type ethernet MGMT-UPLINK 
vmware port-group 
 
switchport trunk allowed vlan 10-12 
channel-group auto mode on 
no shutdown 
state enabled 
 
  
VEMs are seen to be joining and then are lost from the Cisco VSM. How would you resolve this issue？（）

A. Remove second NIC from each port profile
B. Remove VEM from VSM （no vem X）， remove NICs， and reinsert
C. Ensure that VLANs on uplink profiles are not overlapping
D. Reinstall VEM
E. Issue the command "module vem X execute vemcmd set pinning module vsm 1"

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