A mainframe customer with a 2105-800 storage subsystem will be migrating to a new data center.They will be replacing existing servers with newer hardware and the 2105 subsystem with an IBMSystem Storage DS8100. The data centers are 613 kilometers apart. The data migration andproduction cutover must be accomplished with minimal disruption. Which solution best meetsthese requirements?（）

• A、Metro Mirror
• B、HSM
• C、SVC
• D、Global Copy