Adistributioncustomerrequiresafault-tolerantdisksubsystemfortheirx3650M2server.TheypurchasedandattachedtwoEXP3000ExternalExpansionEnclosurestoaServerRAIDMR10MRAIDcontroller.Thecustomerrequiresthehighestperformancepossible，regardlessofcostfortheEXP-baseddrives.WhichRAIDlevelmeetstheserequirements？（）
A.RAID-1
B.RAID-5
C.RAID-10
D.RAID-50