单项选择题
Whichofthefollowingisthemostcosteffectiverequiredsolutiontosupportthebootdisksinternallyfortwopartitionsonap5-520runningAIX5.3withouttheAdvancedVirtualizationfeature?()
A.Optional4-pack
B.7311-D20RIOdrawer
C.Optional4-packanda7311-D20RIOdrawer
D.Optional4-packattachedtoaPCISCSIcard