题目选项分析

On average, the number of speeding tickets issued in County X every year is three times greater than the number of speeding tickets issued in County Y during the same period. Therefore, the number of people who exceed the speed limit must be higher in County X than in County Y.

Which of the following describes a flaw in the reasoning above?

【选项】The argument fails to take into account that the speed limit may be different in the two counties.