单选题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 archit

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?（）