Although real estate values in the rural village of Cornville have dropped because of the new unavailability of medical facilities, prices will not stay low for long. In the five years since the closure of a hospital in the city of Scoville, property values have gradually returned to the levels they held before the closure of the hospital.
Which of the following, if true, most seriously weakens the argument?
【选项】
Cornville’s hospital closed because the population of Cornville and other rural areas has been falling steadily for many years.
选项是否正确？