Plant scientists have been able to genetically engineer seeds to produce crops that are highly resistant to insect damage. Farmers planting such seeds can use much less pesticide. Although these seeds currently cost significantly more than nonengineered seeds, their cost is likely to decline. Since these seeds produce crop yields as high as those produced by nonengineered seeds, the use of genetically engineered seeds is likely to become increasingly common. Which of the following, if true, most strengthens the argument?The argument says genetically engineered seeds are likely to become more common because they allow farmers to use less pesticide, produce normal yields, and are likely to become cheaper.
The strongest support would give farmers an additional reason to use these seeds, especially a reason connected to
market demand.
A. Plant scientists have not yet developed insect-resistant seeds for all commercially grown food crops.
This does not strengthen the argument. It limits the range of crops for which these seeds are available.
B. Consumers prefer to buy grains, fruits, and vegetables that have been grown using little or no pesticide.
This is correct. If consumers prefer crops grown with little or no pesticide, then farmers have a market-based reason to use seeds that allow much less pesticide use. That makes it more likely that genetically engineered seeds will become increasingly common.
C. Traditional methods of plant breeding have also resulted in some insect-resistant strains of plants.
This does not strengthen the argument. It suggests that farmers may have another way to get insect resistance without using genetically engineered seeds.
D. Crops grown from seeds that are genetically engineered to produce insect resistance will still be vulnerable to other types of pests.
This weakens rather than strengthens. It suggests farmers may still need pest control for other threats.
E. The cost of many commonly used agricultural pesticides is likely to decline as the use of genetically engineered seeds increases.
This does not strengthen the argument. If pesticides become cheaper, one financial advantage of using genetically engineered seeds becomes smaller.
Answer: (B)