Which of the following, if true about Stanton, most seriously weakens the argument? A. The number of automobile accidents has been declining in recent years. B. Since taxicabs are driven more miles annually than most other vehicles, they are more likely to be in an accident during any given year than is the average vehicle. C. There are more taxicabs in operation, relative to the overall number of motor vehicles, than there are in most cities of Stanton's size. D. The number of people, including the driver, who occupy a vehicle is generally greater for taxicabs than for other vehicles. E. Not all passengers in automobiles other than taxicabs use seat belts.