The horse power of the motor running the compressor of a refrigerator having COP of 4.5 and extracting $200 \mathrm{~kJ} \mathrm{~kg}^{-1}$ of evaporating heat with $1.5 \mathrm{~kg} \min ^{-1}$ refrigerant flow rate is
(A) 0.5
(B) 1.0
(C) 1.5
(D) 2.0
The horse power of the motor running the compressor of a refrigerator having COP of 4.5 and extracting $200 \mathrm{~kJ} \mathrm{~kg}^{-1}$ of evaporating heat with $1.5 \mathrm{~kg} \min ^{-1}$ refrigerant flow rate is
(A) 0.5
(B) 1.0
(C) 1.5
(D) 2.0