Read the following context and choose the best option to answer the question.
Context: Then he asked me how much I was paying to cool my home . I told him it was running between $ 113-$119 , with $ 113 being the most recent bill . What I did not expect to hear is that is very good for my size home . Apparently most other homes this size are costing $ 130-$150 monthly .
Question: What is the OP paying for to cool the house ?
Options: 
A. Ice cubes
B. Windows
C. Fans
D. None of the above choices .


C