Geologists believe that one of the largest volcanic eruptions in human history occurred 74,000 years ago, the Toba supereruption. In one area, Middle Paleolithic tools of similar styles have been found and dated to closely before and after the Toba supereruption, indicating that the humans who lived after the supereruption were members of the population that had lived in that area prior to the eruption.
Which of the following, if true, most seriously weakens the argument?
【选项】
Other evidence indicates that tools of similar styles had been used in the area long prior to the supereruption.
选项是否正确？