A.theintermediatesitevolumesareMetroMirrortargetvolumesfortheremotesite
B.theintermediatesitevolumesareGlobalMirrortargetvolumesfortheremotesite
C.theintermediatesitevolumesarebothGlobalMirrorsourceandMetroMirrortargetatthesametime
D.theintermediatesitevolumesarealsoFlashCopysourcesfortheremotesite
参考答案：C
