Mark’s car holds a maximum of 30 gallons of gas. The function f(g) = 2.85g models the relationship between the total cost of gas, f(g), and the number of gallons of gas purchased, g. What is the most appropriate domain of the function? A.g < 30 B.0 < g < 30C.g ≤ 30D.0 ≤ g ≤ 30