The temperature of a liquid, in degrees Fahrenheit, when placed in refrigeration is represented by the function R(X) = 72 - 4(1.1)^x, where x is the time in minutes since the liquid was placed in the refrigerator. The liquid continues to cool
until it reaches the temperature of the air in the refrigerator.

If an ice cube is added to the beverage, the additional decrease in temperature, measured in degrees Fahrenheit, represented
by the function C(x) = 6 - (1.1)^x, where x is the number of minutes since the ice cube was placed in the liquid.

If an ice cube is placed in the liquid, and the liquid is then immediately placed in the refrigerator, which function best describes
T(x), the temperature of the liquid over time?

A. T(x)= 66-7(1.1)^x
B. T(x)= 66-3(1.1)^x
C. T(x)= 78-3(1.1)^x
D. T(x)= 78-5(1.1)^x