A financially efficient method of clearing roadways of excessive congestion is to expand the number of bus routes between cities and suburbs lying 5 to 50 miles apart. Doing so would be less expensive than expanding highway capacity and would simultaneously decrease the number of vehicles making their way between destinations at any given time.
Which of the following, if true, could proponents of the plan above most appropriately cite as a piece of evidence for the soundness of their plan?
【选项】
Two-thirds of all car commuters are traveling to cities that are less than 45 miles away from their homes.
选项是否正确？