A hotel offers a reward program based on the number of nights stayed. The function f(x) represents the number of free nights earned as a function of x, the number of nights stayed. f(x) = [ x/10 ]

Which describes the meaning of f(x)?

A. A customer earns 1 free night per 10 nights stayed.
B. A customer starts with 1 free night and then earns another free night after every 10 nights stayed.
C. A customer earns x – 10 free nights for every 10 nights stayed.
D. A customer earns 10 free nights after x number of nights stayed.