Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Pesticide

Expert replies
by gmatmachoman » Fri Nov 27, 2009 1:57 am
Plant scientists have been able to genetically engineer vegetable seeds to produce crops that are highly resistant to insect damage. Although these seeds currently cost more than conventional seeds, their cost is likely to decline. Moreover, farmers planting them can use far less pesticide, and most consumers prefer vegetables grown with less pesticide, therefore, for crops for which these seeds can be developed, their use is likely to become the norm.

Which of the following would be most useful to know in evaluating the argument above?
A)Whether plant scientists have developed insect-resistant seeds for every crop that is currently grown commercially?
B)Whether farmers typically use agricultural pesticides in large amounts than is necessary to prevent crop damage?
C)Whether plants grown from the new genetically engineered seeds can be kept completely free of insect damage?
D)Whether seeds genetically engineered to produce insect-resistant crops generate significantly lower per acre crop yields than do currently used seeds?
E)Whether most varieties of crops currently grown commercially have greater natural resistance to insect damage than did similar varieties in the past.
Join the discussion
Source: — Critical Reasoning |

by papgust » Fri Nov 27, 2009 2:14 am
IMO its D

We can infer that the new seeds are highly insect-resistant and most consumers prefer vegetables grown with less pesticide. Also, the cost of new seeds is guaranteed to decline than it currently is.
But we do not know whether the new seeds produce lower per acre yields than the conventional seeds produce currently. We need to get this information before concluding that it's use is likely to become the norm. Hence this is the best choice.

Please share the OA.
Join the discussion

by heshamelaziry » Fri Nov 27, 2009 11:17 am
IMO d as well
Join the discussion

by mehravikas » Sun Nov 29, 2009 12:07 pm
Between C and D.....confused
Join the discussion

by gmatmachoman » Mon Nov 30, 2009 2:22 am
Join the discussion

by mehravikas » Mon Nov 30, 2009 11:37 am
Can someone explain why is C wrong?
Join the discussion

by joseph32 » Sun May 15, 2016 10:38 pm
Looking at it now, C makes sense
Join the discussion