At a convenience store, bottles of water cost $1.50 each. The function below gives the cost of buying x bottles. Give a reasonable domain and range for the function in this context. f(x) = 1.5x

A. Domain: x ≥ 0 Range: y ≥ 0
B. Domain: x = 0, 1, 2, 3, 4, 5, ... Range: y = 0, 1.5, 3, 4.5, 6, 7.5, ...
C. Domain: x ≥ 1.5 Range: y ≥ 1.5
D. Domain: x = 0, 1, 2, 3, 4, 5, ... Range: y = 0, 1, 2, 3, 4, 5, ...