Which of the following is an assumption on which the argument relies? A. There is no expense associated with operating an automobile that is higher when the automobile uses the plant-based fuel than when it uses gasoline. B. Automobiles that have been operated using the plant-based fuel can no longer be operated using regular gasoline. C. The environmental damage attributable to automobiles is due almost entirely to the production and combustion of fuel automobiles use. D. The advantages of the plant-based fuel over gasoline will not lead those who switch to the plant-based fuel to do more driving. E. Most drivers in Ternland will switch from gasoline to the plant-based fuel.