A customer is concerned about the high energy cost associated with their data center. Specifically， their concern focuses on the cooling cost of many hundreds of servers. You have a meeting with the CIO and CFO to propose a solution. How would you prepare yourself for the meeting？ （）

A. Since their capacities and usage models vary， ask the customer to turn off some of the servers during off-peak and low demand time.
B. Investigate their expansion plans and suggest to the customer the removal of some of their servers to another location and retirement of the older servers.
Contact the CFO to find out the targeted energy savings of the company and propose to the customer the purchase of a more efficient cooling system.
D. Contact the CIO for a list of servers and type/model numbers. Complete a proposal outlining the savings on energy cost by deploying an IBM BladeCenter solution and total cost of ownership and return on investment.