Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage. Unfortunately, the seeds themselves are quite expensive, and the plants require more fertilizer and water to grow well than normal ones. Thus, for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of additional fertilizer. However, since consumer demand for grains, fruits, and vegetables grown without the use of pesticides continues to rise, the use of genetically engineered seeds of this kind is likely to become widespread.
In the argument given, the two portions in boldface play which of the following roles?The argument first introduces genetically engineered seeds that produce crops resistant to insect damage. It then considers cost objections but concludes that the seeds will likely become widespread because consumers increasingly want pesticide-free produce.
The first boldface introduces the development being discussed, and the second gives
support for the prediction that the seeds will become widely used.
A. The first supplies a context for the argument; the second is evidence that would, if not offset by other evidence, call the conclusion of the argument into question.
This is incorrect. The second boldface supports the conclusion; it does not call the conclusion into question.
B. The first presents a situation that the argument assumes will develop in certain ways; the second is one of those ways.
This is incorrect. The second boldface is not a way in which the first situation will develop; it is a reason the seeds may become widespread.
C. The first introduces a development that the argument predicts will have a certain impact; the second is a consideration on which that prediction is based.
This is correct. The first introduces the development: genetically engineered insect-resistant seeds. The second supports the prediction that these seeds will become widespread, because rising consumer demand for pesticide-free food gives farmers a reason to use them despite higher costs.
D. The first provides evidence to support a prediction defended by the argument; the second acknowledges a trend that could undermine the force of that evidence.
This is incorrect. The second boldface does not undermine anything; it supports the argument’s prediction.
E. The first provides evidence to support a prediction defended by the argument; the second is that prediction.
This is incorrect. The second boldface is not the prediction. The prediction is that the use of these seeds is likely to become widespread.
Answer: (C)