A car gets 40 kilometers per gallon of gasoline. How many gallons of gasoline would the car need to travel 120 kilometers?  Select the correct option.
A) 4.5  B) 5.5  C) 6.5  D) 3  E) 8.5

Rationale: "each 40 kilometers , 1 gallon is needed . we need to know how many 40 kilometers are there in 120 kilometers ? 120 ÷ 40 = 3 × 1 gallon = 3 gallons correct answer d"
Answer: D