Read the following SAT test question and then click on a button to select your answer.

A rental car company charges $45 per day for the rental of a midsize car. Additionally, there is a tax of 8% on all car rentals. Which of the following functions c best represents the total charge, including tax, in dollars, to rent the midsize car for d days?

A.c(d)=45.08d
B.c(d)=45d+1.08
C.c(d)=45*0.08d
D.c(d)=45*1.08d

来源:可可英语 http://www.kekenet.com/sat/201705/511603.shtml