The cost to rent a motorcycle includes a one-time refundable fee and the cost per day the motorcycle is rented. The total cost to rent a motorcycle for one or more days can be represented by the function C (n) = 85n + 100 where n represents the number of days the motorcycle is rented. What does the value 85 represent in this scenario?
A. 85 represents the one-time refundable fee
B. 85 represents how many days the motorcycle was rented for
C. 85 represents the total amount spent to rent the motorcycle
D. 85 represents the cost per day the motorcycle is rented