Q: Fact 1: Operating an automobile usually requires fossil fuels. Fact 2: Cars, see Automobiles. Given the two facts above, what requires fossil fuels for operation?

Select from:
I. motors.
II. bicycles.
III. paddle boats.
IV. humans.
V. cars.
VI. trains.
VII. goats.
VIII. skateboards.
The answer is:
V.