单项选择题

Acustomerisconcernedaboutrisingpowercosts，andthelimited……

A customer is concerned about rising power costs， and the limited space they have left in the computer room. They have been doing some research into virtualization and would like to know if they should pursue this solution. Which of the following architectural features should be discussed with them？（）

A.x3650 M3 servers and racks
B.x3550 M3 servers， VMware and racks
C.BladeCenter， blades and VMware
D.x3620 M3 servers and VMware

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