Before going into a more detailed discussion, here is one trick (courtesy of Lawyer's Gmat CR summary): For assumption question, whenever the question is comparing two cases and showing differece between those two, the answer, on most time, should be the one saying some similarity between the two different cases. Onto this question, this is a typical causal oversimplication question, the author assume watching tv is the one and the only factor that will affect that children's level of Math. So to find the answer, we need to keep in mind that we need to rule out any other causes by selecting the right logic enclosed in each option. A: if this is true, then watching less tv will not make any positive progress. because US in general do not like math. WRONG B: Again, this option provides us yet another factor that can affect the effectiveness of author's strategy. WRONG C: THis is the attractive "incorrect answer". But the author assumes the opposite: children who watch less tv will do well. D: This is flat-out irrelevent. E: This is the ANSWER. like said above, this option rules out any other possible explainations and gives ground to the author's theory. |