A customer has a storage requirement for a mixed IBM System p and System z environment. They require approximately 2 TB of high performance disk for their System z environment. They require approximately 25 TB of low-performance disk for their System p environment. The storage specialist is using Capacity Magic to configure an IBM System Storage DS8300.  Which configuration is most appropriate for this customer（）

• A、4 x 73 GB 15k rpm disk drive sets for System z； and 4 x 500 GB 7.2k rpm disk drive sets for System p
• B、4 x 146 GB 15k rpm disk drive sets for System z； and 2 x 500 GB 7.2k rpm disk drive sets for System p
• C、2 x 300 GB 10k rpm disk drive sets for System z； and 4 x 300 GB 10k rpm disk drive sets for System p
• D、2 x 73 GB 15k rpm disk drive sets for System z； and 2 x 500 GB 7.2k rpm disk drive sets for System p