AuserhasacomputerthatrunsWindows2000Professional.TheuserplanstoupgradethecomputertoWindowsXPProfessional.Youneedtoinstructtheuserhowtoperformtheupgrade.YoumustensurethattheuserisonlypromptedtoentertheWindowXPproductIDduringtheinstallation.Whichcommandshouldyouinstructtheusertorun?（）
A.sysprep.exe-nosidgen
B.sysprep.exe-reseal
C.winnt32\/duprepare
D.winnt32.exe\/unattend
参考答案：D
