there is a way to tackle 'assumption' questions: 1, deny the choice and see if it works 2, if not, it must be teh right choice, vice versa.
for this one, first, deny choice E ---- > if the education on ...
concepts in US is subtantially poorer than that in Korea -------> no
matter how little time US kids watch tV, they won't ourperform Korean
kids not E -----> not conclusion ========> E is teh assumption |