A company with three sites （one local production site， one intermediate site， and one remote site） wants to use Metro/Global Mirror.  Which statement is correct about the volumes at the intermediate site（）

A.the intermediate site volumes are Metro Mirror target volumes for the remote site

B.the intermediate site volumes are Global Mirror target volumes for the remote site

C.the intermediate site volumes are both Global Mirror source and Metro Mirror target at the same time

D.the intermediate site volumes are alsoFlashCopy sources for the remote site