A customer has multiple applications on multiple open platforms in their current environment based on IBM System Storage DS8100. They plan to set up a business continuity solution that meets the objective of zero or little data loss for their business critical data. The customer has indicated that cost is a factor.  What should the storage specialist recommend（）

• A、a DS8700 in the Business Continuity site with a Metro Mirror license
• B、a DS8700 with SAN Volume Controller in the Business Continuity site
• C、a DS8700 in the Business Continuity site with Global Copy license
• D、two new DS5300 servers （production and Business Continuity site） with a Global Copy license