The government's plan is to pay direct subsidies to domestic farmers—reasoning that the farmers will then spend those funds on technology to make their products more competitive with those of foreign producers.
To "cast doubt on the plan", we need a hypothetical situation
why this plan WON'T WORK IF IT'S TRIED. In other words, we need an answer choice that
helps argue that, IF the government pays subsidies to farmers as described, the farmers WON'T end up investing in agricultural technology.Choice C says the farmers would probably go spend the money on something else instead, so, that's the choice we want. (If a problem with this approximate structure were to appear on the real GMAT, the correct answer would almost certainly describe a
specific non-technological purpose for which the farmers would spend the money instead.)
.
Wrong answers:
A/ The argument doesn't say anything about the timeline on which the farmers might reap returns on their investment, so a longer timeline doesn't affect the reasoning.
B/ The first sentence of the paragraph definitively tells us that "Domestic agriculture is struggling because agriculture from overseas is available at lower prices". Since we
know that domestic farmers are being outcompeted on prices, we also know that any technology that would allow the farmers to price their crops more competitively WILL help make them more competitive on the global market, since it will factually help address the shortcoming described in the first sentence.
Even if domestic farmers are
also behind their international competition on other measures, this logic is still sound—since the goal is only to
improve the competitiveness of domestic farmers. (If the paragraph had said "To put domestic farmers in a position to
outcompete their counterparts in other countries...", THEN this could be the correct answer choice—because in that case
all of the domestic farmers' competitive weaknesses would contribute to the outcome.)
D/ Like choice A, this is irrelevant because the original argument isn't subject to any particular timeline. In this case the domestic farmers' improved competitiveness would be short-lived unless they could build on it during those two years—but the argument that they WOULD gain competitive improvements for at least those 2 years is still sound.
E/ We're only concerned with whether this one particular plan would work as laid out. Alternative uses of the same tax money are not in consideration here.