Assume that the price for swimming pool maintenance services has risen and sales of these services have fallen. One can conclude that:
Answer Options:
A) the demand for swimming pool maintenance services has increased.
B) the law of supply has been violated.
C) the supply of swimming pool maintenance services has decreased.
D) swimming pool maintenance services are becoming more technologically advanced.
If the price for swimming pool maintenance services has risen and sales of these services have fallen, one can conclude that the supply of swimming pool maintenance services has decreased.