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