by charmayne.palomba Tue Nov 01, 2011 3:34 pm
PT46, S2, Q16 (Strengthen)
(B) is correct.
As is the case with all assumption family questions, we should begin by identifying the conclusion. In this case, it’s conveniently located at the end of the stimulus, and triggered by "thus," a common conclusion indicator: visually impaired people can access information from computers more easily than from traditional sources. What evidence does the author provide in support of this conclusion? First, we’re told that a limited amount of printed information is available in those more traditional sources (e.g., large type and audiotapes.) That’s important information, because our conclusion is comparative"”it makes a claim about the relative ease of accessing information using a computer vs. traditional sources. Next, we’re told that given the right hardware and software, visually impaired people can access a large quantity of information and have that information translated into a form that they are able to use. Here’s our core:
v. impaired people with access to right equipment can access large quant. of info via computer
+
limited info avail. in
print
-->
v. impaired people can access info more easily using a computer
This seems like a pretty reasonable argument, and there isn’t a glaring flaw that jumps off the page at us. But if we read carefully"”like a debater"”we come across a red flag in the stimulus: "with the right hardware and software." This phrase qualifies the people who would have access to this wealth of information: they need to have the right equipment. But the conclusion glazes over that qualification, and makes a much more general"”and certain"”claim that visually impaired people can access information more easily using computers. What if very few visually impaired people are able to get the hardware and software they need? What if it isn’t very easy to use? Let’s keep these questions in mind as we approach the answer choices.
(A) is tempting, but "computer speech synthesizer" (and "audiotape," for that matter) is a pretty narrow term. The stimulus tells us that people can access a wealth of information given the right hardware and software. To say the least, it’s doubtful that a computer speech synthesizer on its own fulfills this criterion. Furthermore, does it necessarily follow that because the synthesizer is cheap, it will be accessible? What if they are cheap, but very few are available?
(C) is out of scope. The author is arguing that visually impaired people can access more information using computers. Whether they want to is another question altogether.
(D) may be true, but is the conclusion making a definitive claim about the amount of information available via computer vs. traditional sources? No"”it’s making a claim about the ease of access to that information. It may be the case that people who have access via a computer could get the same information using traditional sources, but it may be more difficult to do so. This answer choice doesn’t refer to ease of access at all, and therefore isn’t relevant to the core. Out of scope!
(E) does not address the relative accessibility of computer and traditional sources. If anything, this would tend to weaken the conclusion. The problem with traditional sources is that there is a limited amount available in accessible formats; if the rate of conversion increased, there would be more information available in traditional sources, which might make it easier to access information from traditional sources, thus lessening the gap between ease of access via computer and traditional sources.
That leaves (B), which is the correct answer. This addresses exactly the gap we saw when we read the stimulus, and makes the argument much more watertight. If computers allow visually impaired users to access more information and the equipment they need to make that potential a reality are easy to get and use, the author’s claim is substantiated: visually impaired people will indeed be able to access information more easily using a computer.