Unlike modern irrigation techniques, in which water is carefully distr

Question

Unlike modern irrigation techniques, in which water is carefully distributed in small amounts rather than allowed to flow freely,  the ancient Romans created systems of canals that often  flooded and thus wasted water.

A. the ancient Romans created systems of canals that often
B. the irrigation methods of the ancient Romans consisted of systems of canals that often
C. the ancient Roman irrigation methods often were systems of canals that 
D. the ancient Romans had canal systems for irrigation that were often
E. the methods of ancient Roman irrigation were systems of canals that often

KidGMATClubber · Answer

What is the answer? I had chosen C. But the answer was not showing up.

ataman · Answer

First of all with like it must be noun and relevant things need to compared. So A ,D & E is gone.

B,C is left. Later if you can look at last word of them In C there is a redundancy error. So It would be B. I have give chance to C first later I saw repetitive flooded word.

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varun325 · Answer

Only b and c are close.
I choose B because there were two errors i figured in C.
1. The entity compared should be as close as possible.
2. Canals were 'often' flooded while in C 'methods were often system of Canals
B is precise and logical

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KidGMATClubber · Answer

Thank you guys I just noticed the repetition in the sentence than you for your assistance.

winterschool · Answer

I think answer - E

Unlike modern irrigation techniques, in which water is carefully distributed in small amounts rather than allowed to flow freely, the ancient Romans created systems of canals that often flooded and thus wasted water.

A.  the ancient Romans  created systems of canals that often

Incorrect  - wrong comparison, modern irrigation techniques vs the ancient Romans

B. the irrigation methods of the ancient Romans  consisted  of systems of canals that often

Incorrect  - methods consisted of systems of canals, sounds bad

C. the ancient Roman irrigation methods  often  were systems of canals that flooded

Incorrect  - meaning change

D.  the ancient Romans  had canal systems for irrigation that were often

Incorrect  - same as A

E. the methods of ancient Roman irrigation were systems of canals that often

correct

ataman · Answer

Agree with winterschool I haven’t noticed that consisted of sounds bad. Kudos to winterschool

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aditya96166 · Answer

a,d,e are eliminated as they are not comparing the irrigation method.
b,c remain out of which c is a bit too wordy, so b is the correct choice.

raunakd11 · Answer

Hello guys!

It took me longer for this question, but loved the reasoning here, and the structure of the question!

Let's use POE,

Eliminate  Option A and D , the question clearly talks about comparing a modern scenario with an ancient one. So,  statements A and D  refrain from talking about the  irrigation methods.  So drop A and D without any guilt! :p

Option B  seems good. We can come back to this later.

Eliminate  Option C , the latter part  'often were systems of canals that flooded'  seems wordy. So I won't adhere to this one for sure.

Option E  was sort of close. But IMO,  Option B is much better  than Option E because  it is less ambiguous and the construction is much better. 
So, drop Option E.

IMO,
 Answer:- Option B

Thank you!

PS- Please drop your 2 cents if the answer does not match your understanding. 
 
Regards,
Raunak Damle

chaitralirr · Answer

Unlike modern irrigation techniques, in which water is carefully distributed in small amounts rather than allowed to flow freely,  the ancient Romans created systems of canals that often  flooded and thus wasted water.

A. the ancient Romans created systems of canals that often
B. the irrigation methods of the ancient Romans consisted of systems of canals that often
C. the ancient Roman irrigation methods often were systems of canals that flooded
D. the ancient Romans had canal systems for irrigation that were often
E. the methods of ancient Roman irrigation were systems of canals that often

Idiom Unlike X, Y we are comparing the modern irrigation techniques to the irrigation techniques of ancient Roman.

In option A, C and D the comparison is incorrect as the irrigation technique is compared to ancient Romans.

In option B and E. In option E again the comparison is incorrect

IMO B

Eniigma · Answer

Official Answer

(A) The sentence compares modern irrigation techniques to the ancient Romans. This is not a valid comparison.

(B) CORRECT. This choice correctly compares irrigation techniques to irrigation methods.

(C) While this sentence correctly compares irrigation techniques to irrigation methods, it states that the ancient Roman irrigation methods… were systems of canals. This meaning is nonsensical. It implies that the methods consisted entirely of canals with no other components. Additionally, the placement of the word often indicates that the methods often were systems of canals, but not always. A more logical meaning is that the canals often flooded. Often should be closer to flooded, the word it modifies.

(D) This choice illogically compares modern irrigation techniques to the ancient Romans.

(E) While this sentence correctly compares irrigation techniques to methods of … irrigation, it states that the methods… were systems of canals. This meaning is nonsensical. It implies that the methods consist entirely of canals with no other components. Additionally, the modifier ancient Roman incorrectly modifies irrigation, but should modify methods.

PrafulLata · Answer

Unlike modern irrigation techniques, in which water is carefully distributed in small amounts rather than allowed to flow freely,  the ancient Romans created systems of canals that often  flooded and thus wasted water.

A.   the ancient Romans   created systems of canals that often
B.   the irrigation methods of the ancient Romans consisted of systems of canals that often  
C. the ancient Roman irrigation methods   often   were systems of canals that
D.   the ancient Romans   had canal systems for irrigation that were often
E.   the methods of ancient Roman irrigation   were systems of canals that often

The very first work unlike indicates that there is a comparison in the sentence. So it starts with an irrigation technique of particular period. So irrigation technique must be compared with the techniques .. Eliminate options A and D.
 
Option C distort the meaning because of modifier error - often modifies methods. However, in actual sentence it modifies canals.

Option E also distort the meaning. logic comparison is irrigation techniques of two particular period whereas E compares techniques with ancient roman irrigation.

Unlike modern irrigation techniques, in which water is carefully distr

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GMAT Sentence Correction (SC - EA only) Questions

Unlike modern irrigation techniques, in which water is carefully distr

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

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