An air handler is a large unmixed heat exchanger used for comfort control in large buildings. In one such application, chilled water (c_p = 4.2 kJ/kg · K) enters an air handler at 5°C and leaves at 12°C with a flow rate of 1000 kg/h. This cold water cools air (c_p = 1.0 kJ/kg · K) from 25°C to 15°C. The rate of heat transfer between the two streams is
(a) 8.2 kW

(b) 23.7 kW

(c) 33.8 kW

(d) 44.8 kW

(e) 52.8 kW