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