PT65, S1, Q5 (Weaken)
(D) is correct.
This is an Assumption Family question, specifically a Weaken question. As always, we should start by finding the conclusion. This conclusion isn’t too difficult to find, since it appears at the end of the stimulus and includes "therefore" to guide us there: the television program is therefore biased against the new proposed freeway.
Next, it is time to find the support, or the premise(s), for this conclusion. We are told that a television news program covering a controversy regarding a new freeway proposal conducted interviews, and of the interviews shown, those with people "against" the new freeway outnumbered those with people "for" the freeway two to one. This gives us the following argument core:
Interviews Shown Were Two-One Against New Freeway -> Television Program Biased Against New Freeway
So, this argument concludes that the television program is biased against the new freeway because it included more interviews against the new freeway than for the new freeway. What are some of the gaps in this argument? The most noticeable gap may jump out at you immediately _ the television program interviews could have been representative of the population (those affected by the new freeway could be against it two to one). Additionally, what if the television program intended to focus on people against the new freeway, and had a different program meant to focus on the other side later? There are a multitude of gaps in almost any argument on the LSAT. Once you have found a few (or even just one) you should shift your focus to the answer choices.
Since this is a Weaken question, we want to find an answer choice that exposes one of the many gaps in the argument core. It may be one of the gaps we predicted, or it may be something we haven't considered. It is important to keep an open mind before looking at the answer choices. What we do know is that the correct answer will bring new (and sometimes unexpected) information to call into question the reasoning of the argument.
(A) is irrelevant. It doesn’t matter whether or not most of the people who watched the program were aware of the controversy beforehand. Is the television program biased are not?
(B) like A, is irrelevant. It doesn't matter if the viewers of television news programs expect those programs to be at least somewhat biased. Is the television program biased are not?
(C) is a premise booster. This could explain why the interviews shown were two-one against the new freeway, if we assume that emotional interviews are more likely to be shown. But even with that assumption, the question remains: is the television program biased or not? Eliminate!
(E) does the opposite of what we want. This strengthens the argument by making it seem like the television station has a motive to be biased against the freeway. This would strengthen the argument’s conclusion. We want to weaken it. These "opposite" answer choices are not only common, but also very attractive if you lose sight of your task.
That leaves (D), which is the assumption we identified earlier. If the population was actually two to one against the building of the freeway before the program aired, the television program is simply being representative, not biased.