I really only need confirmation here... I’m stuck on which of the two answers (A or C) it is. Hector’s service club is raising money by wrapping presents in the mall. The function f(x) = 3x describes the amount of money, in dollars, the club will earn for wrapping x presents. They only have enough wrapping paper to wrap 1000 presents.

Describe the domain of the function.

A. All real numbers such that 1000 ≥ x ≥ 0 (I flipped the problem because I couldn’t find the sign. Really it would be 0 ≥ x ≥ 1000 with the signs facing the other way)

B. All real numbers

C. All whole numbers such that 1000 ≥ x ≥ 0 (I flipped the problem because I couldn’t find the sign. Really it would be 0 ≥ x ≥ 1000 with the signs facing the other way)

D. All whole numbers