Acustomerneedsthree2-wayapplicationserversandisevaluatingthepurchaseofthreep5-520sversusonepartitioned6-wayp5-570.Theylikethebenefitsprovidedwithdynamicprocessorsparing.WhatinformationshouldthepSeriestechnicalspecialistemphasizetothecustomer？（）
A.Thep5-570offersCoDprocessors.
B.Thep5-570requiresmorerackspacethanthethreep5-520s.
C.Redundantpowerisstandardonthep5-570andisoptionalonthep5-520.
D.Operatingsystemchargeswillbelessexpensivewiththep5-520solution.
参考答案：A
