A customer has an IBM System Storage DS5000 and needs to add more disk drives to the unit.There is no record of the configuration for this machine. How can the configuration be retrieved soan upgrade can be configured？（）

• A、use Storage Manager to export the system profile
• B、create a configuration ineConfig and provide proof of purchase
• C、use the IBM Standalone Systems Configuration Tool （SSCT） to recreate the configuration
• D、have the customer contact the IBM AAS coordinator to retrieve a copy of the originalconfiguration