单选题An administrator tries to change the checksum_offload setting on ent0， but the chdev command responds that the adapter is busy. What can be done to resolve this（）？AUse chdev with -P flag and run cfgmgr.BUse chdev with -R flag and run cfgmgr.CUse chdev with -P flag and reboot the system.DUse chdev with -R flag and reboot the system.
单选题
An administrator tries to change the checksum_offload setting on ent0， but the chdev command responds that the adapter is busy. What can be done to resolve this（）？
A
Use chdev with -P flag and run cfgmgr.
B
Use chdev with -R flag and run cfgmgr.
C
Use chdev with -P flag and reboot the system.
D
Use chdev with -R flag and reboot the system.
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