by bbirdwell Thu Apr 14, 2011 10:49 pm
Let's just start from the top by isolating the core of the argument.
Conclusion:
We should make imported fruit cost more than domestic fruit.
(note that imported means "from another country")
Premises:
1. If we don't, growers in other countries will put domestic growers out of business.
2. When domestic growers go out of business, farmland will become industrial, and a unique way of life will vanish.
Next, let's be clear about our task here. We want an answer choice that validates a key assumption in the argument via a general rule (principle). In other words, we want a rule makes it so that when we "plug into it" the evidence above, we are guaranteed to arrive at the conclusion above. That's how these questions work.
So the argument essentially looks like this to me:
We should do X, cause if we don't, Y.
What's being assumed here? That Y is a bad thing!
Imagine I told you: "We should sing happy birthday, cause if we don't, we'll get free ice cream." Would you want to sing? Which is to say, is my conclusion a good one?
Or if i said "We should sing happy birthday, cause if we don't we'll be hung." Now is my conclusion a good one?
Think about what assumptions are required by either argument, regardless of whether you think the conclusion is good or bad.
In order for the first example's conclusion to be VALID, we must assume that we don't want free ice cream. (stupid, i know)
In order for the second example to be valid, we must assume that we don't want to be hung. (word!)
Applied to the argument at hand, in order to VALIDATE the conclusion, we must assume that losing this unique way of life is a bad thing.
So, we want a choice that strengthens the argument, and more or less says "losing a unique way of life is a bad thing," in general terms.
(A) Nope! In fact, we know nothing about overall economic interest of "our country" vs others -- just a small snippet about farms and farmland.
(B) Nope! In fact, in the argument, the domestic producers get the shaft.
(C) Yes! "social concerns" = "way of life," and "economic efficiency" = "more lucrative" use of the land. (we may not see this right off, in which case we should leave it b/c of the notion of "social concerns" and move on to the others...)
(D) Nope! This rule does nothing to help the given argument. Think about it. If I tell you "(D)," and then I say "If we don't put a tariff on apples, we'll lose a unique way of life," do you immediately conclude "Well, we better put a tariff on apples, then!" No! Nothing about the interests of this country's citizens vs that county's citizens is part of it.
(E) Out. See (D). This does nothing to help us get our conclusion from the given evidence. Knowing that this is our task here is essential to eliminating, as you can see.
Does that help?