Sadly, AI's accuracy is nowhere near 99.9% yet. But more importantly, before citing AI, read the existing discussion. As discussed above, C is irrelevant because it only addresses
number, and therefore doesn't allow us to conclude anything about
proportion. Official or not, this is a very common GMAT trap in both quant and verbal. Without totals to compare them to, the raw numbers of students receiving aid don't tell us anything at all.
BinodBhai
Acc to AI (which I believe is 99.9% of the times correct) the answer is C and even I feel its better.. since its not even official question.. I will debate and put up my argument below:
Quote:
C) the number of students receiving federal and state financial aid at for-profit colleges and non-profit colleges
This option directly addresses the relationship between the aid drawn and the number of students receiving aid.
If (C) shows that a much larger number of students at for-profit colleges receive aid (despite fewer total students), it would support the idea that a higher proportion of their student body is financially disadvantaged (assuming aid is primarily for the disadvantaged).
However, if (C) shows that the number of students receiving aid is actually smaller at for-profit colleges, then the "disproportionate share of aid" mentioned in the premise must mean that each student at a for-profit college receives a much larger amount of aid.
If this were true, it would weaken the conclusion. A smaller number of students getting a large amount of aid doesn't necessarily mean a higher proportion of their overall student body is disadvantaged. It could mean that the aid structure itself is different.
For-profit colleges have high fees, what if just 1-2 students ate up most of the budget?