Amy is backpacking with her friends. At the base of a hill, they find the temperature to be 23.2°C. As they reach the summit situated at a height of one kilometer, they notice that the temperature has dipped to 15.5°C. If h represents the height and T represents the temperature, which of the following equations can be used to model this situation?
A. T = -7.7 - 23.2h

B. T = -7.7h + 23.2

C. T = -7.7 + 23.2h

D. T = 23.2h + 7.7