The function C(x) represents the cost, in dollars, of renting a bicycle for x hours.
Which statement BEST represents the statement C(5) = 15?
15 bicycles can be rented for 5 hours.
The cost of renting 5 bicycles is 15 dollars.
A
B
C
D
The cost of renting a bicycle for 5 hours is 15 dollars.
The cost of renting a bicycle for 15 hours is 5 dollars.