The Windows group has two SQL servers that need to add 1 TB of additional disk. Each of theWindows servers already has a SAS RAID adapter. It is expected that over time the storagerequirements will grow beyond the capability of internal disks. There are no additional adapterslots available on the servers. What is the most cost effective IBM solution for this customer tomeet the immediate needs today and the future growth of tomorrow?（）

• A、DS3300 
• B、DS3400 
• C、EXP5000 expansion enclosure 
• D、EXP3000 expansion enclosure