A customer would like to implement an IBM System Storage DS8000 solution. A Capacity Magic study has determined that 500 drives of 450 GB are required to meet the customer’s capacity requirements. Limited space is available for additional systems in the data center. Which solution best meets the customer’s requirements（）
- ADS8800 system with three frames
- BDS8800 system with one frame
- CDS8700 system with two frames
- DDS8800 system with two frame