Answer:
(E) Over the past ten years, there has not been a steady decline in the annual number of drivers and passengers involved in automobile accidents in Vorland.
Step-by-step explanation:
The new regulations that Vorland's country has adopted for atomovels has resulted in major improvements for the country's population, as the number of passengers and drivers hospitalized or injured due to traffic accidents has decreased considerably as the new regulations require stronger airbags and seat belts. Among the options given in the question, an assumption on which this argument depends can be observed in the letter E.