mainframe customer would like to receive a proposal for a mainframe storage system with 120 TB raw capacity. The  mainframe server load is not too high， and they need hard disk drives with the lowest possible power consumption to keep operating costs low. The customer will not increase the capacity of their mainframe applications in the future but rather invest later into their System p servers.  Which of the following solutions best meets these requirements at the lowest cost（）

• A、offer a DS8700 system with 600 GB FC drives
• B、offer a DS8800 system with standard cabling and 600 GB SAS drives
• C、offer a DS8800 system with business class cabling and 600 GB SAS drives
• D、offer a DS8800 system with SATA drives