A client wants to implement a highly available cluster between two sites. At each site the client has an IBMDS8300. At each site， the client would like a single node which will be connected through a SAN to the local DS8300but not the remote DS8300. Which clustering product could be used to provide high availability for this infrastructure？（）
- APowerHA/XD for GLVM
- BPowerHA with cross-site LVM
- CPowerHA/XD for Metro Mirror
- DPowerHA/XD for Global Mirror