Which of the following method is normally used to control the circulated air temperature of an air conditioning system using chilled water circulation?

A
A fan speed controller regulates the amount of air flowing across the coils
B
Control dampers varying the number of passes the air makes across the cooling coils
C
A regulating valve changes the inlet temperature of the water in the cooling coils
D
A regulating valve control the quantity of chilled water flowing in the cooling coils
E
A solenoid valve controls the inlet temperature of the water in the heating coils