A small business currently has four separate servers， three of which perform low-overhead tasks with small memory footprints. How could the company BEST reduce power consumption among these four servers， while not sacrificing functionality？（）

1. A Enable each server’s Cool ’n’ Quiet and/or SpeedStep functionality so that processing power is conserved.
2. B Enforce auto-shutdown routines on all four servers for after-hours power saving while the office is closed.
3. C Consolidate the four servers onto the best two，combining them logically by tasks and memory consumption.
4. D Consolidate the four servers onto the most powerful machine using virtualization. 正确答案