A new study reports that every had an IQ level............... Please find the question as attached, please explain.
The justification for A would seem to be that the standard of IQ is significantly lower for the second study than for the first; thus, the optimal national leader IQ would likely be significantly higher, probably higher than 138, for the first study. To me this is cheap and un-GMATlike. Where did you get this question from?
c/o MBA Center Paris