What are three common reasons why customers are saying that they need to evolve their datacenter?（）

• A、architectures that is inflexible and inefficient
• B、desire to use the same vender for desktop and server deployments
• C、selecting best-performing vendors for each individual component
• D、existing equipment has reached and of life
• E、increasing operational costs of managing data centers
• F、demand among users for access to information anytime, anywhere