Which of the following statements correctly compares the rate of change for the money payed, measured as dollars per delivery, between 5 and 10 games rented and 15 and 20 games rented?
A The rate of change is larger between 5 and 10 games than 15 to 20 games.
B. The rate of change is a positive value between 5 and 10 games and a negative value between 15 to 20
games
C. The rate of change is smaller between 5 and 10 games than15 to 20 games.
D. The rate of change is the same between the two intervals.