A customer has just obtained a second data center through the acquisition of a competitor. The IT Director is now seeking to merge，integrate，and rebalance systems across the two data centers over thenext two years. They have just deployed a high-speed point-to-point circuit between the facilities. The IT Director would like a system that could backup their AIX and Win2K servers and electronically vault the data between sites as part of their Disaster Recovery Plan. What product should the pSeries technical specialist recommend for this requirement？（）

A. CSM
B. TSM
C. NIM
D. Sysback