Afinancecompanyneedstoincreaseitsstoragebuthasrunoutoffloorspaceinthedatacenter.CurrentlytheyhavetwoESS800systemswithatotalof125TBofSystemzdata.WhichofthefollowingIBMSystemStorageproductswouldallowthemtoreplacetheESS800systems,increasetheirperformance,reducetheirfloorspace,andstillallowthemroomtogrow?（）
A.N5200
B.DS5020
C.DS5300
D.DS8700
参考答案：D
