单选题Which IBM System Storage DS8000 copy function provides a three-site or three-copy solutionusing both synchronous and asynchronous replication?（）A FlashCopyB Metro/Global MirrorC Metro MirrorD Global Mirror
题目
单选题
Which IBM System Storage DS8000 copy function provides a three-site or three-copy solutionusing both synchronous and asynchronous replication?（）
A
FlashCopy
B
Metro/Global Mirror
C
Metro Mirror
D
Global Mirror