【单选题】
An IBM XIV system with nine modules and 2 TB disks is being proposed to a customer who needs to increase disk capacity in the data center. The customer is concerned about data growth andcost after the initial purchase. Which of the following factors of the solution should be stressed to the customer to address data growth?（）
A、the XIV system can be scaled by the addition of modules
B、XIV offers thin provisioning for all available host operating systems
C、reduced operating costs will pay for another XIV system in less than two years
D、the management GUI allows the administrator tovirtualize the entire storage system quickly
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