BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

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.

★★★★★5.0559 reviews
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 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
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Sun · 9:30 AM to 12:30 PM ET
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
GMATOnDemand Start 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

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

1000 SC #606

Expert replies
by Mani_mba » Mon Sep 15, 2008 10:24 pm
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
(A) that produce and make it understandable has revealed great complexity instead of underlying simplicity
(B) of producing and understanding it have revealed not underlying simplicity but great complexity
(C) by which it is produced and understood has revealed not underlying simplicity but great complexity
(D) by which it is produced and understood have revealed great complexity rather than underlying simplicity
(E) by which one produces and understands it have revealed great complexity instead of underlying simplicity

OA after few explanations[/u]
Join the discussion
Source: — Sentence Correction |

by Indradeep » Mon Sep 15, 2008 10:59 pm
Isn't A correct?
I don't think there is any pronoun/subject verb agreement error in the sentence.
Can't be a tense error either...beats me!
Join the discussion

by vivek.kapoor83 » Tue Sep 16, 2008 2:35 am
IMO A. to make it understand u have to break the sentance... processes that....research on X & Y has............... as research is singular...so it should be A.
Join the discussion

by sethids » Tue Sep 16, 2008 12:44 pm
Yes the answer should be A.
Last edited by sethids on Mon Sep 22, 2008 1:57 pm, edited 2 times in total.
Join the discussion

by s_raizada » Tue Sep 16, 2008 1:17 pm
OA is A

B, D, E - subject verb error, Research is singular so has should be used
C - 'by which' awakward moreover it is produced is passive
Join the discussion

by niraj_a » Tue Sep 16, 2008 1:52 pm
I call bull on the OA, I think its C.

the "it" is more ambiguous in A than in C. Also, processes "by which" kinda makes sense...e.g. The scientiest used processes by which he discovered the particle.
Join the discussion

hi

by Vaneet_Bansal » Tue Sep 16, 2008 5:47 pm
I will go with A.

It should be 'has' because of the singularity of word 'research'.
Out of the remaining 2, C does'nt suit.
Join the discussion

by Swami0104 » Wed Sep 17, 2008 1:44 am
I feel Ans should be D.

Research {Modifier} on the nature of language and {Additive} the processes , As additive is present, subject becomes plural and hence answer will follow... "have".

SC gurus, please correct If I'm wrong.
Join the discussion

by vivek.kapoor83 » Wed Sep 17, 2008 2:45 am
where is the ref of 'it' in the sentence. So, why C. IMO A.
Join the discussion

by stop@800 » Wed Sep 17, 2008 8:45 am
research have revealed is wrong so B, D and E are out.

Language can not be understood by the procee rather processes make it understandable so I think A is the answer.
Join the discussion

by niraj_a » Wed Sep 17, 2008 9:29 am
@vivek

i could pose the same question regarding "it" for A too, right?
Join the discussion

• Page 1 of 1