What is your recommendation to a customer interested in slowing power consumption in the data center?

What is your recommendation to a customer interested in slowing power consumption in the data
center? (Choose two.)

A.
Consolidate servers through virtualization.

B.
Convert servers from 220v to 110v.

C.
Implement Cisco Unified Fabric.

D.
Convert from AC to DC power distribution.

E.
Stop using redundant power supplies.