A client has tried to update the firmware of an Ethernet adapter on a p5 590, however it repeatedly fails. What is the most likely cause of this problem?（）

A、A.The adapter must be taken offline prior to the firmware update

B、B.The adapter must be assigned to the service partition prior to the firmware update

C、C.The system has not been rebooted since the adapter was added to the Logical Partition

D、D.The adapter must be dynamically removed from the Logical Partition prior to the firmware update