Question #N525

A group of friends is planning a trip. They decide to rent a car for \$50 per day plus a one-time insurance fee of \$15. If they rent the car for *d* days, which of the following expressions represents the total cost of renting the car?
A. 50*d + 15
B. 50 + 15*d
C. 50(d + 15)
D. 15(50 + d)