A company has had problems with their HVAC system being able to cool their datacenter as they have grown. <br /> Which of the following could BEST be used to help reduce the load on the HVAC system?()<p> A company has had problems with their HVAC system being able to cool their datacenter as they have grown. <br /> Which of the following could BEST be used to help reduce the load on the HVAC system?()</p>
A、A. Replacing the CAT5 cables with CAT6 cables
B、B. Replacing traditional racks with water cooled racks
C、C. Turning off non-critical application servers during non-business hours
D、D. Taking the second power supplys out of non-critical servers