AcustomerhasaPower750withthefollowing: Oneprocessorcardwith8coresenabled,and64GBRAMinstalledOneGX+adapterwithoneI\/Odrawer attached; One4-port1GbpsIVEadapterPowerVMStandardEdition; TheyneedtoaddaGX++adapterandcableittoanI\/Odrawer.Whichofthefollowingmustalsobeordered?（）
A.AsecondIVEadapter
B.Asecondprocessorcard
C.PowerVMEnterpriseEdition
D.Anadditionalcable-managementarm
参考答案：B
