Wallace is a book editor. He uses the function c(x) = 3.5x to determine the amount he will charge, in dollars, to edit a book with x pages. Which statement best explains what the range of Wallace’s function is? *
The range is all integers because a book must have a positive or negative, whole number of pages.

A. The range is all integers because a book must have a positive or negative, whole number of pages.
B. The range is all positive whole numbers because a book must have a positive, whole number of pages.
C. The range is all positive or negative multiples of 3.5 rounded to the nearest hundredth because the amounts charged are represented as dollars and cents.
D. The range is all positive multiples of 3.5 rounded to the nearest hundredth because the amounts charged are represented as dollars and cents.