The Energy Efficiency Ratio (EER) of Cooling Equipment Can Be

The energy efficiency ratio (EER) of cooling equipment can be calculated by:

A) adding the amount of cooling achieved (Btu/hr) to the amount of energy used (watts drawn by the unit) to operate the system.
B) multiplying the amount of cooling achieved by the amount of energy used.
C) subtracting the amount of cooling achieved from the amount of energy used.
D) dividing the amount of cooling achieved by the amount of energy used.